Abstract

Laser oscillation was demonstrated using a 1 at.% Nd3+-doped Lu2O3 (Nd3+:Lu2O3) transparent ceramic produced by spark plasma sintering. Nd2O3, Lu2O3, and LiF commercial powders were mixed by ball milling and were sintered at 1723 K using a two-step sintering profile. After the transparent Nd3+:Lu2O3 ceramic was annealed in air, its transmittance at 1076 nm reached 81.8%, which was close to the theoretical value for Lu2O3 (82.2%). The absorption cross-section at 806 nm was 1.29 × 10−20 cm2, and the fluorescence decay time at 1076 nm was 229 μs. The laser oscillation of Nd3+:Lu2O3 ceramic for the transition from 4F3/2 to 4I11/2—specifically, at 1076.7 and 1080.8 nm—was simultaneously obtained, with a laser output of 0.21 W and slope efficiency of 14%.

© 2014 Optical Society of America

1. Introduction

Transparent polycrystalline ceramics for laser applications have been studied worldwide after Ikesue et al. demonstrated laser oscillations in a Nd3+-doped yttrium aluminum garnet (Nd3+:YAG) ceramic in 1995 [1]. Although YAG has been widely studied and used as a host material for solid-state lasers, materials possessing higher thermal conductivity and stability are required to enable scale-up to a high-power laser [2]. In recent years, lutetium oxide (Lu2O3) has attracted attention because of its thermal conductivity, which is higher than that of YAG and other sesquioxides (e.g., Y2O3 and Sc2O3) [3]. However, Lu2O3 is difficult to produce by conventional single-crystal synthesis methods because of its high melting point. Therefore, powder densification processes are promising routes to the fabrication of highly transparent Lu2O3 polycrystalline ceramics.

Laser oscillation has been obtained using transparent Lu2O3 ceramics fabricated by several powder densification processes. Lu et al. reported a laser oscillation at 1080 nm in Nd3+:Lu2O3 ceramic, with an output of 0.01 W and a slope efficiency of 12% [4]. Transparent Yb3+:Lu2O3 ceramics were widely studied with different Yb concentration for laser oscillations at different wavelengths and modes [510]. Laser oscillation in Lu2O3 doped with Ho3+ and Tm3+ ceramics were also investigated [1113]. Among the doping ions, Nd ions has emission bands, for example, 917, 1076, 1080, and 1359 nm in Lu2O3, which can be widely used for laser applications on remote sensing, spectroscopy, and optical communications [14,15]. Nd-doped composite laser ceramics are promising in energy and automobile fields as laser ignition [16,17]. On the other hand, the transparent ceramics used in the literature were primarily fabricated by pressureless vacuum sintering processes and hot pressing combined with hot isostatic pressing using powders prepared by a wet chemical method. The drawbacks of these approaches are the prolonged sintering process and the use of homemade powders.

Among sintering techniques, spark plasma sintering (SPS) is a promising method for the fabrication of transparent ceramics. SPS is a fast densification process where sintering is activated by combination of uniaxial pressure and large electric current. A powder compact is heated rapidly by Joule heating of the graphite mold. An applied pressure promotes pore elimination through lattice and grain boundary diffusion. Therefore, SPS is advantageous to consolidate ceramics in a short time and at a low temperature with limited grain growth, resulting in an excellent transparency [18]. We have reported the preparation of transparent Lu2O3 ceramics by SPS using commercially available powders [19] and Boulesteix et al. recently reported highly transparent Nd3+:Lu2O3 fabricated by SPS using shaped precipitation powder by slip-casting [20]. However, there is rarely laser performance reported on Lu2O3 prepared by SPS. In this paper, we prepare highly transparent Nd3+:Lu2O3 ceramic by SPS from commercially available powders and demonstrate its laser oscillation.

2. Experimental procedures

Lu2O3 (Shin-Etsu Rare Earth, Tokyo, Japan; 99.99% purity), Nd2O3 (Wako Pure Chemical, Tokyo, Japan; 99.9% purity), and LiF (Wako Pure Chemical, Tokyo, Japan; 99.9% purity) commercial powders were used as starting materials. These powders were mixed in a Lu:Nd molar ratio of 99:1 with 0.2 wt.% LiF by ball milling using zirconia balls in ethanol for 12 h. The milled slurry was dried at 333 K for 24 h, and the obtained powder was ground and passed through a 200-mesh sieve. The powder was calcined at 1273 K in air for 7.2 ks, and then sintered using an SPS apparatus (SPS-210 LX, Fuji Electronic Industrial, Japan) in vacuum. A two-step profile of heating rate and pressure was used during sintering [19,21]. The sintering temperature was increased to 873 K in 180 s and to 1373 K in 300 s, and then held at 1373 K for 300 s. The temperature was further increased to 1723 K at 0.17 K s−1 and maintained at 1723 K for 2.7 ks. A pressure of 10 MPa was preloaded from room temperature to 1373 K and was subsequently increased to 100 MPa above 1373 K. After sintering, the specimen was annealed in air for 21.6 ks. Both sides of the sample were mirror-polished; the thickness of the sample was 1 mm.

The crystal phase was identified by X-ray diffraction (XRD, RAD-2C, Rigaku, Japan); the instrument was equipped with a graphite-monochromated Cu-Kα radiation source (0.154 nm) operated at 30 kV and 15 mA. Samples were scanned over the 2θ range of 10°–80°. The density was measured using the Archimedes method in distilled water. The sintered body was thermally etched at 1573 K in air for 3.6 ks. A field-emission scanning electron microscope (FESEM, JSM-7500F, JEOL, Japan) and a scanning electron microscope (SEM, S-3100H, Hitachi, Japan) were used to observe the ball-milled powder and the thermally etched surface of the sintered body. The average grain size was determined from the linear intercept length using SEM micrographs (under the assumption of the grain size to be 1.56 times the mean intercept) with at least 250 grains counted [22]. The in-line transmittance was measured using a spectrophotometer (UV-3101PC, Shimadzu, Japan) in the wavelength range 190–2500 nm. The fluorescence spectrum excited by an 808-nm laser diode was recorded by a spectrofluorometer (Fluorolog-3, Jobin Yvon, France) at room temperature. The fluorescence decay curve was measured at the wavelength of 1076 nm using the spectrofluorometer and a digital oscilloscope (TDS 3020, Tektronix, USA).

A schematic diagram of the experimental setup for laser oscillation is shown in Fig. 1. The pump source is a fiber-coupled diode laser (808 nm) with a core diameter of 100 μm and a numerical aperture of 0.22 (LIMO, Germany). The pump radiation was collimated and focused to a spot with a diameter of 130 μm. The input mirror was flat, and the laser output coupler was a dielectric mirror with a radius of curvature of 50 mm and reflectivity of 94.5% at 1076 nm. Transparent Nd3+:Lu2O3 ceramic cut into a 3 mm × 3 mm × 1 mm specimen was wrapped with indium film and mounted on a water-cooled copper holder, whose temperature was maintained at 290 K.

 figure: Fig. 1

Fig. 1 Schematic diagram of the experimental setup for laser oscillation.

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3. Results and discussion

Figure 2 shows the XRD pattern and FESEM image of the Nd3+:Lu2O3 powder. The XRD pattern can be indexed on the basis of cubic Lu2O3 (JCPDS #43-1021) (Fig. 2(a)). The powder was spherical and the average particle size was 80 nm (Fig. 2(b)).

 figure: Fig. 2

Fig. 2 XRD pattern (a) and FESEM image (b) of Nd3+:Lu2O3 calcined powder.

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Figure 3 shows the microstructure of the Nd3+:Lu2O3 ceramic sintered by SPS. The thermally etched surface showed polyhedral-shaped equiaxed grains with an average grain size of 8 μm. Pores were rarely observed, which indicated that the sample was highly dense. The microstructure was consistent with the relative density (99.5%) measured by the Archimedes method. The fracture surface was intergranular mode incorporated with transgranular mode.

 figure: Fig. 3

Fig. 3 Thermally etched (a) and fracture (b) surfaces of Nd3+:Lu2O3 ceramic.

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Figure 4 shows the transmittance spectra of the transparent Nd3+:Lu2O3 ceramic before and after annealing. The transmittance of the annealed Nd3+:Lu2O3 ceramic increased at wavelength in the visible and near-infrared ranges (i.e. longer than 370 nm). For example, the transmittance at 1076 nm was 79.8% before annealing, whereas it reached 81.8% after annealing; this value approached the theoretical value (82.2%) based on the reported refractive index of Lu2O3 [23]. The inset in Fig. 4 shows photographs of the transparent Nd3+:Lu2O3 ceramic before and after annealing. The specimen before annealing exhibited a gray color, whereas it changed to blue after annealing; this blue color was attributed to the light absorption by the Nd3+ ions. Similar changes in color and improved transparency of transparent ceramics prepared by SPS have been reported for Lu2O3 [24], Al2O3 [25], and ZrO2 [26]. Oxygen vacancies might form because of the graphite mold and the reduced atmosphere during sintering and be compensated after annealing, resulting in color change and enhancement of transparency.

 figure: Fig. 4

Fig. 4 Transmittance spectra of Nd3+:Lu2O3 ceramic before and after annealing. The theoretical transmission of Lu2O3 was calculated from the data in [23]. The inset shows photographs of the specimens before (left) and after (right) annealing.

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Figure 5 shows absorption cross-section spectrum of the transparent Nd3+:Lu2O3 ceramic after annealing. Strong absorption bands in the near-infrared range were located at 806 and 822 nm, which were assigned to the transitions from ground state (4I9/2) to 2H9/2 and 4F5/2 excited states. The absorption cross-sections of these two bands for the specimen after annealing were 1.29 × 10−20 cm2 and 1.77 × 10−20 cm2, respectively. This result is accordance with that in the Nd3+:Lu2O3 single crystal (1.97 × 10−20 cm2 at 806 nm for 1 at.% Nd3+) [15].

 figure: Fig. 5

Fig. 5 Absorption cross-section spectrum of Nd3+:Lu2O3 ceramic after annealing.

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Figure 6(a) shows the emission spectrum of the Nd3+:Lu2O3 ceramic pumped by a diode laser (808 nm) at room temperature. The emission bands in the 870–970 nm, 1040–1160 nm, and 1300–1500 nm ranges corresponded to the transitions from 4F3/2 to 4I9/2, 4I11/2, and 4I13/2 states of Nd3+, respectively. The strongest emission peaks were located at 1076 and 1080 nm and were attributed to the 4F3/24I11/2 transition. The fluorescence spectrum of the Nd3+: Lu2O3 ceramic prepared in this study is the same as that of the Nd3+:Lu2O3 transparent ceramic [4] and single crystal [15]. Figure 6(b) shows the fluorescence decay curve at 1076 nm of the Nd3+:Lu2O3 ceramic. It can be fitted by first-order exponential formula and the resulting decay time was 229 μs, which is similar to that in the Nd3+:YAG ceramics (224–238 μs for 1 at.% Nd3+) [2729] and greater than that in the Nd3+:Y2O3 ceramic (158 μs for 1 at.% Nd3+) [30]. The decay time declined to 29 μs for the Nd3+Lu2O3 ceramic at a higher Nd3+ concentration (5 at.%).

 figure: Fig. 6

Fig. 6 (a) Emission spectrum of Nd3+:Lu2O3 ceramic pumped by an 808-nm diode laser and (b) fluorescence decay curve at 1076 nm of Nd3+:Lu2O3 ceramic.

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Figure 7 shows the laser oscillation of the transparent Nd3+:Lu2O3 ceramic prepared by SPS before and after annealing. Two lines located at 1076 and 1080.8 nm were attributed to simultaneous laser oscillations because of their quite similar fluorescence emission intensity, as shown in Fig. 6 [4,15]. For the specimen before annealing, the threshold absorbed pump power was 1.47 W and the maximum output power was 0.03 W. After annealing, the threshold absorbed pump power decreased to 0.35 W and the obtained maximum output power increased to 0.21 W at an absorbed pump power of 1.74 W. The slope and optical–optical efficiencies were 14% and 12%, respectively. The slope efficiency in the present study is comparable to that of Nd3+:Lu2O3 ceramic (0.15 at.% Nd3+) [4], which is 12%, and an Nd3+:Lu2O3 single crystal (1 at.% Nd3+), which is 17.3% [15]. This preliminary laser performance confirms that SPS is a promising method for the preparation of laser-quality transparent ceramics. SPS has a scalability potential. Frage et al. prepared larger transparent YAG ceramics 20 mm in diameter and 5 mm in thickness by SPS [31]. For industrial implementation, a large-scale SPS apparatus for mass production system has been developed [32]. The scalability of SPS has been studied in both experimental and analytical aspects [3336].

 figure: Fig. 7

Fig. 7 Output power as a function of the absorbed power for the transparent Nd3+:Lu2O3 ceramic.

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4. Conclusions

Highly transparent Nd3+:Lu2O3 ceramic was fabricated by SPS using commercial powders. The transmittance at 1076 nm was 79.6% before annealing and reached 81.8% after annealing in air, which was close to the theoretical value for Lu2O3 (82.2%). Laser oscillation was demonstrated for the transparent Nd3+:Lu2O3 ceramic. A maximum output power of 0.21 W with a slope efficiency of 14% was obtained.

Acknowledgments

This research was supported in part by the Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists. This research was also supported in part by the Global COE Program of the Materials Integration, Tohoku University, and in part by the Grant-in-Aid for Exploratory Research, JSPS (#24655186).

References and links

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2. L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999). [CrossRef]  

3. U. Griebner, V. Petrov, K. Petermann, and V. Peters, “Passively mode-locked Yb:Lu2O3 laser,” Opt. Express 12(14), 3125–3130 (2004). [CrossRef]   [PubMed]  

4. J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002). [CrossRef]  

5. K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005). [CrossRef]  

6. A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006). [CrossRef]  

7. M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006). [CrossRef]   [PubMed]  

8. M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008). [CrossRef]   [PubMed]  

9. J. Sanghera, J. Frantz, W. Kim, G. Villalobos, C. Baker, B. Shaw, B. Sadowski, M. Hunt, F. Miklos, A. Lutz, and I. Aggarwal, “10% Yb3+-Lu2O3 ceramic laser with 74% efficiency,” Opt. Lett. 36(4), 576–578 (2011). [CrossRef]   [PubMed]  

10. W. Kim, C. Baker, G. Villalobos, J. Frantz, B. Shaw, A. Lutz, B. Sadowski, F. Kung, M. Hunt, J. Sanghera, and I. Aggarwal, “Synthesis of high purity Yb3+-doped Lu2O3 powder for high power solid-state lasers,” J. Am. Ceram. Soc. 94(9), 3001–3005 (2011). [CrossRef]  

11. W. Kim, C. Baker, S. Bowman, C. Florea, G. Villalobos, B. Shaw, B. Sadowski, M. Hunt, I. Aggarwal, and J. Sanghera, “Laser oscillation from Ho3+ doped Lu2O3 ceramics,” Opt. Mater. Express 3(7), 913–919 (2013). [CrossRef]  

12. O. L. Antipov, A. A. Novikov, N. G. Zakharov, and A. P. Zinoviev, “Optical properties and efficient laser oscillation at 2066 nm of novel Tm:Lu2O3 ceramics,” Opt. Mater. Express 2(2), 183–189 (2012). [CrossRef]  

13. A. A. Lagatsky, O. L. Antipov, and W. Sibbett, “Broadly tunable femtosecond Tm:Lu2O3 ceramic laser operating around 2070 nm,” Opt. Express 20(17), 19349–19354 (2012). [CrossRef]   [PubMed]  

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31. N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010). [CrossRef]  

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References

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  1. A. Ikesue, T. Kinoshita, K. Kamata, and K. Yoshida, “Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers,” J. Am. Ceram. Soc. 78(4), 1033–1040 (1995).
    [Crossref]
  2. L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
    [Crossref]
  3. U. Griebner, V. Petrov, K. Petermann, and V. Peters, “Passively mode-locked Yb:Lu2O3 laser,” Opt. Express 12(14), 3125–3130 (2004).
    [Crossref] [PubMed]
  4. J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
    [Crossref]
  5. K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
    [Crossref]
  6. A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
    [Crossref]
  7. M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006).
    [Crossref] [PubMed]
  8. M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
    [Crossref] [PubMed]
  9. J. Sanghera, J. Frantz, W. Kim, G. Villalobos, C. Baker, B. Shaw, B. Sadowski, M. Hunt, F. Miklos, A. Lutz, and I. Aggarwal, “10% Yb3+-Lu2O3 ceramic laser with 74% efficiency,” Opt. Lett. 36(4), 576–578 (2011).
    [Crossref] [PubMed]
  10. W. Kim, C. Baker, G. Villalobos, J. Frantz, B. Shaw, A. Lutz, B. Sadowski, F. Kung, M. Hunt, J. Sanghera, and I. Aggarwal, “Synthesis of high purity Yb3+-doped Lu2O3 powder for high power solid-state lasers,” J. Am. Ceram. Soc. 94(9), 3001–3005 (2011).
    [Crossref]
  11. W. Kim, C. Baker, S. Bowman, C. Florea, G. Villalobos, B. Shaw, B. Sadowski, M. Hunt, I. Aggarwal, and J. Sanghera, “Laser oscillation from Ho3+ doped Lu2O3 ceramics,” Opt. Mater. Express 3(7), 913–919 (2013).
    [Crossref]
  12. O. L. Antipov, A. A. Novikov, N. G. Zakharov, and A. P. Zinoviev, “Optical properties and efficient laser oscillation at 2066 nm of novel Tm:Lu2O3 ceramics,” Opt. Mater. Express 2(2), 183–189 (2012).
    [Crossref]
  13. A. A. Lagatsky, O. L. Antipov, and W. Sibbett, “Broadly tunable femtosecond Tm:Lu2O3 ceramic laser operating around 2070 nm,” Opt. Express 20(17), 19349–19354 (2012).
    [Crossref] [PubMed]
  14. A. A. Kaminskii, “Laser crystal and ceramics: recent advances,” Laser Photon. Rev. 1(2), 93–177 (2007).
    [Crossref]
  15. L. Hao, K. Wu, H. Cong, H. Yu, H. Zhang, Z. Wang, and J. Wang, “Spectroscopy and laser performance of Nd:Lu2O3 crystal,” Opt. Express 19(18), 17774–17779 (2011).
    [Crossref] [PubMed]
  16. N. Pavel, M. Tsunekane, and T. Taira, “Composite, all-ceramics, high-peak power Nd:YAG/Cr4+:YAG monolithic micro-laser with multiple-beam output for engine ignition,” Opt. Express 19(10), 9378–9384 (2011).
    [Crossref] [PubMed]
  17. T. Taira, “Domain-controlled laser ceramics toward giant micro-photonics,” Opt. Mater. Express 1(5), 1040–1050 (2011).
    [Crossref]
  18. R. Chaim, Z. Shen, and M. Nygren, “Transparent nanocrystalline MgO by rapid and low temperature spark plasma sintering,” J. Mater. Res. 19(9), 2527–2531 (2004).
    [Crossref]
  19. L. An, A. Ito, and T. Goto, “Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering,” J. Eur. Ceram. Soc. 31(9), 1597–1602 (2011).
    [Crossref]
  20. R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
    [Crossref]
  21. L. An, A. Ito, and T. Goto, “Effect of LiF addition on spark plasma sintering of transparent Nd-doped Lu2O3 bodies,” J. Asian Ceram. Soc. 2(2), 154–157 (2014).
    [Crossref]
  22. M. I. Mendelson, “Average grain size in polycrystalline ceramics,” J. Am. Ceram. Soc. 52(8), 443–446 (1969).
    [Crossref]
  23. A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
    [Crossref]
  24. L. An, A. Ito, and T. Goto, “Effects of ball milling and post-annealing on the transparency of spark plasma sintered Lu2O3,” Ceram. Int. 37(7), 2263–2267 (2011).
    [Crossref]
  25. D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
    [Crossref]
  26. U. Anselmi-Tamburini, J. Woolman, and Z. Munir, “Transparent nanometric cubic and tetragonal zirconia obtained by high-pressure pulsed electric current sintering,” Adv. Funct. Mater. 17(16), 3267–3273 (2007).
    [Crossref]
  27. L. D. Merkle, M. Dubinskii, K. L. Schepler, and S. M. Hegde, “Concentration quenching in fine-grained ceramic Nd:YAG,” Opt. Express 14(9), 3893–3905 (2006).
    [Crossref] [PubMed]
  28. M. Pokhrel, N. Ray, G. A. Kumar, and D. K. Sardar, “Comparative studies of the spectroscopic properties of Nd3+: YAG nanocrystals, transparent ceramic and single crystal,” Opt. Mater. Express 2(3), 235–249 (2012).
    [Crossref]
  29. Y. Sato, T. Taira, and A. Ikesue, “Spectral Parameters of Nd3+-ion in the polycrystalline Solid-solution Composed of Y3Al5O12 and Y3Sc2Al3O12,” Jpn. J. Appl. Phys. 42(8), 5071–5074 (2003).
  30. Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).
  31. N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
    [Crossref]
  32. M. Tokita, “Industrial applications of advanced spark plasma sintering,” Am. Ceram. Soc. Bull. 85, 32–34 (2006).
  33. E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
    [Crossref]
  34. E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
    [Crossref]
  35. T. B. Holland, U. Anselmi-Tamburini, and A. K. Mukherjee, “Electric fields and the future of scalability in spark plasma sintering,” Scr. Mater. 69(2), 117–121 (2013).
    [Crossref]
  36. O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
    [Crossref]

2014 (2)

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

L. An, A. Ito, and T. Goto, “Effect of LiF addition on spark plasma sintering of transparent Nd-doped Lu2O3 bodies,” J. Asian Ceram. Soc. 2(2), 154–157 (2014).
[Crossref]

2013 (2)

W. Kim, C. Baker, S. Bowman, C. Florea, G. Villalobos, B. Shaw, B. Sadowski, M. Hunt, I. Aggarwal, and J. Sanghera, “Laser oscillation from Ho3+ doped Lu2O3 ceramics,” Opt. Mater. Express 3(7), 913–919 (2013).
[Crossref]

T. B. Holland, U. Anselmi-Tamburini, and A. K. Mukherjee, “Electric fields and the future of scalability in spark plasma sintering,” Scr. Mater. 69(2), 117–121 (2013).
[Crossref]

2012 (5)

O. L. Antipov, A. A. Novikov, N. G. Zakharov, and A. P. Zinoviev, “Optical properties and efficient laser oscillation at 2066 nm of novel Tm:Lu2O3 ceramics,” Opt. Mater. Express 2(2), 183–189 (2012).
[Crossref]

A. A. Lagatsky, O. L. Antipov, and W. Sibbett, “Broadly tunable femtosecond Tm:Lu2O3 ceramic laser operating around 2070 nm,” Opt. Express 20(17), 19349–19354 (2012).
[Crossref] [PubMed]

M. Pokhrel, N. Ray, G. A. Kumar, and D. K. Sardar, “Comparative studies of the spectroscopic properties of Nd3+: YAG nanocrystals, transparent ceramic and single crystal,” Opt. Mater. Express 2(3), 235–249 (2012).
[Crossref]

E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
[Crossref]

E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
[Crossref]

2011 (7)

L. An, A. Ito, and T. Goto, “Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering,” J. Eur. Ceram. Soc. 31(9), 1597–1602 (2011).
[Crossref]

J. Sanghera, J. Frantz, W. Kim, G. Villalobos, C. Baker, B. Shaw, B. Sadowski, M. Hunt, F. Miklos, A. Lutz, and I. Aggarwal, “10% Yb3+-Lu2O3 ceramic laser with 74% efficiency,” Opt. Lett. 36(4), 576–578 (2011).
[Crossref] [PubMed]

W. Kim, C. Baker, G. Villalobos, J. Frantz, B. Shaw, A. Lutz, B. Sadowski, F. Kung, M. Hunt, J. Sanghera, and I. Aggarwal, “Synthesis of high purity Yb3+-doped Lu2O3 powder for high power solid-state lasers,” J. Am. Ceram. Soc. 94(9), 3001–3005 (2011).
[Crossref]

L. An, A. Ito, and T. Goto, “Effects of ball milling and post-annealing on the transparency of spark plasma sintered Lu2O3,” Ceram. Int. 37(7), 2263–2267 (2011).
[Crossref]

L. Hao, K. Wu, H. Cong, H. Yu, H. Zhang, Z. Wang, and J. Wang, “Spectroscopy and laser performance of Nd:Lu2O3 crystal,” Opt. Express 19(18), 17774–17779 (2011).
[Crossref] [PubMed]

N. Pavel, M. Tsunekane, and T. Taira, “Composite, all-ceramics, high-peak power Nd:YAG/Cr4+:YAG monolithic micro-laser with multiple-beam output for engine ignition,” Opt. Express 19(10), 9378–9384 (2011).
[Crossref] [PubMed]

T. Taira, “Domain-controlled laser ceramics toward giant micro-photonics,” Opt. Mater. Express 1(5), 1040–1050 (2011).
[Crossref]

2010 (1)

N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
[Crossref]

2008 (3)

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
[Crossref]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[Crossref] [PubMed]

2007 (2)

A. A. Kaminskii, “Laser crystal and ceramics: recent advances,” Laser Photon. Rev. 1(2), 93–177 (2007).
[Crossref]

U. Anselmi-Tamburini, J. Woolman, and Z. Munir, “Transparent nanometric cubic and tetragonal zirconia obtained by high-pressure pulsed electric current sintering,” Adv. Funct. Mater. 17(16), 3267–3273 (2007).
[Crossref]

2006 (4)

L. D. Merkle, M. Dubinskii, K. L. Schepler, and S. M. Hegde, “Concentration quenching in fine-grained ceramic Nd:YAG,” Opt. Express 14(9), 3893–3905 (2006).
[Crossref] [PubMed]

M. Tokita, “Industrial applications of advanced spark plasma sintering,” Am. Ceram. Soc. Bull. 85, 32–34 (2006).

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006).
[Crossref] [PubMed]

2005 (1)

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

2004 (2)

U. Griebner, V. Petrov, K. Petermann, and V. Peters, “Passively mode-locked Yb:Lu2O3 laser,” Opt. Express 12(14), 3125–3130 (2004).
[Crossref] [PubMed]

R. Chaim, Z. Shen, and M. Nygren, “Transparent nanocrystalline MgO by rapid and low temperature spark plasma sintering,” J. Mater. Res. 19(9), 2527–2531 (2004).
[Crossref]

2003 (1)

Y. Sato, T. Taira, and A. Ikesue, “Spectral Parameters of Nd3+-ion in the polycrystalline Solid-solution Composed of Y3Al5O12 and Y3Sc2Al3O12,” Jpn. J. Appl. Phys. 42(8), 5071–5074 (2003).

2002 (1)

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

2001 (1)

Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).

1999 (1)

L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
[Crossref]

1995 (1)

A. Ikesue, T. Kinoshita, K. Kamata, and K. Yoshida, “Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers,” J. Am. Ceram. Soc. 78(4), 1033–1040 (1995).
[Crossref]

1969 (1)

M. I. Mendelson, “Average grain size in polycrystalline ceramics,” J. Am. Ceram. Soc. 52(8), 443–446 (1969).
[Crossref]

Aggarwal, I.

Akchurin, M. S.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

Alombert-Goget, G.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

An, L.

L. An, A. Ito, and T. Goto, “Effect of LiF addition on spark plasma sintering of transparent Nd-doped Lu2O3 bodies,” J. Asian Ceram. Soc. 2(2), 154–157 (2014).
[Crossref]

L. An, A. Ito, and T. Goto, “Effects of ball milling and post-annealing on the transparency of spark plasma sintered Lu2O3,” Ceram. Int. 37(7), 2263–2267 (2011).
[Crossref]

L. An, A. Ito, and T. Goto, “Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering,” J. Eur. Ceram. Soc. 31(9), 1597–1602 (2011).
[Crossref]

Anselmi-Tamburini, U.

T. B. Holland, U. Anselmi-Tamburini, and A. K. Mukherjee, “Electric fields and the future of scalability in spark plasma sintering,” Scr. Mater. 69(2), 117–121 (2013).
[Crossref]

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
[Crossref]

U. Anselmi-Tamburini, J. Woolman, and Z. Munir, “Transparent nanometric cubic and tetragonal zirconia obtained by high-pressure pulsed electric current sintering,” Adv. Funct. Mater. 17(16), 3267–3273 (2007).
[Crossref]

Antipov, O. L.

Bagayev, S. N.

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

Baker, C.

Becker, P.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

Bohatý, L.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

Boulesteix, R.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

Bowman, S.

Bradbury, W. L.

E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
[Crossref]

E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
[Crossref]

Brenier, A.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

Chaim, R.

R. Chaim, Z. Shen, and M. Nygren, “Transparent nanocrystalline MgO by rapid and low temperature spark plasma sintering,” J. Mater. Res. 19(9), 2527–2531 (2004).
[Crossref]

Cong, H.

Dargatz, B.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
[Crossref]

Dariel, M. P.

N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
[Crossref]

Dong, J.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

Dubinskii, M.

Epherre, R.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

Ezersky, V.

N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
[Crossref]

Florea, C.

Fornasiero, L.

L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
[Crossref]

Frage, N.

N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
[Crossref]

Frantz, J.

J. Sanghera, J. Frantz, W. Kim, G. Villalobos, C. Baker, B. Shaw, B. Sadowski, M. Hunt, F. Miklos, A. Lutz, and I. Aggarwal, “10% Yb3+-Lu2O3 ceramic laser with 74% efficiency,” Opt. Lett. 36(4), 576–578 (2011).
[Crossref] [PubMed]

W. Kim, C. Baker, G. Villalobos, J. Frantz, B. Shaw, A. Lutz, B. Sadowski, F. Kung, M. Hunt, J. Sanghera, and I. Aggarwal, “Synthesis of high purity Yb3+-doped Lu2O3 powder for high power solid-state lasers,” J. Am. Ceram. Soc. 94(9), 3001–3005 (2011).
[Crossref]

Garcia-Cardona, C.

E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
[Crossref]

Gonzalez-Julian, J.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
[Crossref]

Goto, T.

L. An, A. Ito, and T. Goto, “Effect of LiF addition on spark plasma sintering of transparent Nd-doped Lu2O3 bodies,” J. Asian Ceram. Soc. 2(2), 154–157 (2014).
[Crossref]

L. An, A. Ito, and T. Goto, “Effects of ball milling and post-annealing on the transparency of spark plasma sintered Lu2O3,” Ceram. Int. 37(7), 2263–2267 (2011).
[Crossref]

L. An, A. Ito, and T. Goto, “Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering,” J. Eur. Ceram. Soc. 31(9), 1597–1602 (2011).
[Crossref]

Griebner, U.

Guillon, O.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
[Crossref]

Guyot, Y.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

Haines, C. D.

E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
[Crossref]

E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
[Crossref]

Hao, L.

Hegde, S. M.

Herrmann, M.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
[Crossref]

Holland, T. B.

T. B. Holland, U. Anselmi-Tamburini, and A. K. Mukherjee, “Electric fields and the future of scalability in spark plasma sintering,” Scr. Mater. 69(2), 117–121 (2013).
[Crossref]

Hosokawa, S.

Huber, G.

L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
[Crossref]

Hulbert, D. M.

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
[Crossref]

Hunt, M.

Ikesue, A.

Y. Sato, T. Taira, and A. Ikesue, “Spectral Parameters of Nd3+-ion in the polycrystalline Solid-solution Composed of Y3Al5O12 and Y3Sc2Al3O12,” Jpn. J. Appl. Phys. 42(8), 5071–5074 (2003).

Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).

A. Ikesue, T. Kinoshita, K. Kamata, and K. Yoshida, “Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers,” J. Am. Ceram. Soc. 78(4), 1033–1040 (1995).
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L. An, A. Ito, and T. Goto, “Effect of LiF addition on spark plasma sintering of transparent Nd-doped Lu2O3 bodies,” J. Asian Ceram. Soc. 2(2), 154–157 (2014).
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L. An, A. Ito, and T. Goto, “Two-step pressure sintering of transparent lutetium oxide by spark plasma sintering,” J. Eur. Ceram. Soc. 31(9), 1597–1602 (2011).
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Ivanov, S. N.

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

Jiang, D.

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
[Crossref]

Kalabukhov, S.

N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
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Kamata, K.

A. Ikesue, T. Kinoshita, K. Kamata, and K. Yoshida, “Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers,” J. Am. Ceram. Soc. 78(4), 1033–1040 (1995).
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Kaminskii, A. A.

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[Crossref] [PubMed]

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
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A. A. Kaminskii, “Laser crystal and ceramics: recent advances,” Laser Photon. Rev. 1(2), 93–177 (2007).
[Crossref]

M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006).
[Crossref] [PubMed]

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
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Kapoor, D.

E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
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E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
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Kessel, T.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
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Khazanov, E. N.

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

Kim, W.

Kinoshita, T.

A. Ikesue, T. Kinoshita, K. Kamata, and K. Yoshida, “Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers,” J. Am. Ceram. Soc. 78(4), 1033–1040 (1995).
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Kumar, G. A.

Kung, F.

W. Kim, C. Baker, G. Villalobos, J. Frantz, B. Shaw, A. Lutz, B. Sadowski, F. Kung, M. Hunt, J. Sanghera, and I. Aggarwal, “Synthesis of high purity Yb3+-doped Lu2O3 powder for high power solid-state lasers,” J. Am. Ceram. Soc. 94(9), 3001–3005 (2011).
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Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).

Lagatsky, A. A.

Land, D.

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
[Crossref]

Lu, J.

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Lutz, A.

W. Kim, C. Baker, G. Villalobos, J. Frantz, B. Shaw, A. Lutz, B. Sadowski, F. Kung, M. Hunt, J. Sanghera, and I. Aggarwal, “Synthesis of high purity Yb3+-doped Lu2O3 powder for high power solid-state lasers,” J. Am. Ceram. Soc. 94(9), 3001–3005 (2011).
[Crossref]

J. Sanghera, J. Frantz, W. Kim, G. Villalobos, C. Baker, B. Shaw, B. Sadowski, M. Hunt, F. Miklos, A. Lutz, and I. Aggarwal, “10% Yb3+-Lu2O3 ceramic laser with 74% efficiency,” Opt. Lett. 36(4), 576–578 (2011).
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Martin, D. G.

E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
[Crossref]

E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
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M. I. Mendelson, “Average grain size in polycrystalline ceramics,” J. Am. Ceram. Soc. 52(8), 443–446 (1969).
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Miklos, F.

Mix, E.

L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
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Mukherjee, A. K.

T. B. Holland, U. Anselmi-Tamburini, and A. K. Mukherjee, “Electric fields and the future of scalability in spark plasma sintering,” Scr. Mater. 69(2), 117–121 (2013).
[Crossref]

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
[Crossref]

Munir, Z.

U. Anselmi-Tamburini, J. Woolman, and Z. Munir, “Transparent nanometric cubic and tetragonal zirconia obtained by high-pressure pulsed electric current sintering,” Adv. Funct. Mater. 17(16), 3267–3273 (2007).
[Crossref]

Musha, M.

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Ng, T.

D. Jiang, D. M. Hulbert, U. Anselmi-Tamburini, T. Ng, D. Land, and A. K. Mukherjee, “Optically transparent polycrystalline Al2O3 Produced by spark plasma sintering,” J. Am. Ceram. Soc. 91(1), 151–154 (2008).
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Novikov, A. A.

Noyau, S.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
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Nygren, M.

R. Chaim, Z. Shen, and M. Nygren, “Transparent nanocrystalline MgO by rapid and low temperature spark plasma sintering,” J. Mater. Res. 19(9), 2527–2531 (2004).
[Crossref]

Olevsky, E. A.

E. A. Olevsky, C. Garcia-Cardona, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: II. finite element analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2414–2422 (2012).
[Crossref]

E. A. Olevsky, W. L. Bradbury, C. D. Haines, D. G. Martin, and D. Kapoor, “Fundamental aspects of spark plasma sintering: I. experimental analysis of scalability,” J. Am. Ceram. Soc. 95(8), 2406–2413 (2012).
[Crossref]

Pavel, N.

Peterman, K.

L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
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Petermann, K.

Peters, V.

U. Griebner, V. Petrov, K. Petermann, and V. Peters, “Passively mode-locked Yb:Lu2O3 laser,” Opt. Express 12(14), 3125–3130 (2004).
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L. Fornasiero, E. Mix, V. Peters, K. Peterman, and G. Huber, “New oxide crystals for solid state lasers,” Cryst. Res. Technol. 34(2), 255–260 (1999).
[Crossref]

Petrov, V.

Pokhrel, M.

Räthel, J.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
[Crossref]

Ray, N.

Sadowski, B.

Sallé, C.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

Sanghera, J.

Sardar, D. K.

Sato, Y.

Y. Sato, T. Taira, and A. Ikesue, “Spectral Parameters of Nd3+-ion in the polycrystalline Solid-solution Composed of Y3Al5O12 and Y3Sc2Al3O12,” Jpn. J. Appl. Phys. 42(8), 5071–5074 (2003).

Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).

Schepler, K. L.

Schierning, G.

O. Guillon, J. Gonzalez-Julian, B. Dargatz, T. Kessel, G. Schierning, J. Räthel, and M. Herrmann, “Field-assisted sintering technology/spark plasma sintering: mechanisms, materials, and technology developments,” Adv. Eng. Mater. (to be published), doi:.
[Crossref]

Shaw, B.

Shen, Z.

R. Chaim, Z. Shen, and M. Nygren, “Transparent nanocrystalline MgO by rapid and low temperature spark plasma sintering,” J. Mater. Res. 19(9), 2527–2531 (2004).
[Crossref]

Shijo, I.

Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).

Shirakawa, A.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[Crossref] [PubMed]

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006).
[Crossref] [PubMed]

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Sibbett, W.

Sverdlov, N.

N. Frage, S. Kalabukhov, N. Sverdlov, V. Ezersky, and M. P. Dariel, “Densification of transparent yttrium aluminum garnet (YAG) by SPS processing,” J. Eur. Ceram. Soc. 30(16), 3331–3337 (2010).
[Crossref]

Taira, T.

N. Pavel, M. Tsunekane, and T. Taira, “Composite, all-ceramics, high-peak power Nd:YAG/Cr4+:YAG monolithic micro-laser with multiple-beam output for engine ignition,” Opt. Express 19(10), 9378–9384 (2011).
[Crossref] [PubMed]

T. Taira, “Domain-controlled laser ceramics toward giant micro-photonics,” Opt. Mater. Express 1(5), 1040–1050 (2011).
[Crossref]

Y. Sato, T. Taira, and A. Ikesue, “Spectral Parameters of Nd3+-ion in the polycrystalline Solid-solution Composed of Y3Al5O12 and Y3Sc2Al3O12,” Jpn. J. Appl. Phys. 42(8), 5071–5074 (2003).

Y. Sato, I. Shijo, S. Kurimura, T. Taira, and A. Ikesue, “Spectroscopic properties of neodymium-doped Y2O3 ceramics,” OSA TOPS 50, 417–421 (2001).

Takaichi, K.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006).
[Crossref] [PubMed]

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Takurakawa, M.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

Taranov, A. V.

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
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Tokita, M.

M. Tokita, “Industrial applications of advanced spark plasma sintering,” Am. Ceram. Soc. Bull. 85, 32–34 (2006).

Tokurakawa, M.

Tsunekane, M.

Ueda, K.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[Crossref] [PubMed]

M. Tokurakawa, K. Takaichi, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped mode-locked Yb3+:Lu2O3 ceramic laser,” Opt. Express 14(26), 12832–12838 (2006).
[Crossref] [PubMed]

A. A. Kaminskii, S. N. Bagayev, K. Ueda, K. Takaichi, A. Shirakawa, S. N. Ivanov, E. N. Khazanov, A. V. Taranov, H. Yagi, and T. Yanagitani, “New results on characteriazation of highly transparent C-modification Lu2O3 nanocrystalline ceramics: room-temperature tunable CW laser action of Yb3+ ions under LD-pumping and the propagation kinetics of non-equilibrium acoustic phonons,” Laser Phys. Lett. 3(8), 375–379 (2006).
[Crossref]

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Uematsu, T.

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Vandenhende, M.

R. Boulesteix, R. Epherre, S. Noyau, M. Vandenhende, A. Maître, C. Sallé, G. Alombert-Goget, Y. Guyot, and A. Brenier, “Highly transparent Nd:Lu2O3 cermaics obtained by coupling slip-casting and spark plasma sintering,” Scr. Mater. 75, 54–57 (2014).
[Crossref]

Villalobos, G.

Wang, J.

Wang, Z.

Woolman, J.

U. Anselmi-Tamburini, J. Woolman, and Z. Munir, “Transparent nanometric cubic and tetragonal zirconia obtained by high-pressure pulsed electric current sintering,” Adv. Funct. Mater. 17(16), 3267–3273 (2007).
[Crossref]

Wu, K.

Yagi, H.

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
[Crossref]

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[Crossref] [PubMed]

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[Crossref]

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
[Crossref]

Yanagitani, T.

M. Tokurakawa, A. Shirakawa, K. Ueda, H. Yagi, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Diode-pumped 65 fs Kerr-lens mode-locked Yb3+:Lu2O3 and nondoped Y2O3 combined ceramic laser,” Opt. Lett. 33(12), 1380–1382 (2008).
[Crossref] [PubMed]

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[Crossref]

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[Crossref] [PubMed]

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[Crossref]

K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
[Crossref]

J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
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J. Lu, K. Takaichi, T. Uematsu, A. Shirakawa, M. Musha, K. Ueda, H. Yagi, T. Yanagitani, and A. A. Kaminskii, “Promising ceramic laser material: Highly transparent Nd3+:Lu2O3 ceramic,” Appl. Phys. Lett. 81(23), 4324–4326 (2002).
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[Crossref]

A. A. Kaminskii, M. S. Akchurin, P. Becker, K. Ueda, L. Bohatý, A. Shirakawa, M. Takurakawa, K. Takaichi, H. Yagi, J. Dong, and T. Yanagitani, “Mechanical and optical properties of Lu2O3 host-ceramics for Ln3+ lasants,” Laser Phys. Lett. 5(4), 300–303 (2008).
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K. Takaichi, H. Yagi, A. Shirakawa, K. Ueda, S. Hosokawa, T. Yanagitani, and A. A. Kaminskii, “Lu2O3:Yb3+ ceramics- a novel gain material for high-power solid-state lasers,” Phys. Status Solidi 202(1), R1–R3 (2005).
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[Crossref]

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Figures (7)

Fig. 1
Fig. 1 Schematic diagram of the experimental setup for laser oscillation.
Fig. 2
Fig. 2 XRD pattern (a) and FESEM image (b) of Nd3+:Lu2O3 calcined powder.
Fig. 3
Fig. 3 Thermally etched (a) and fracture (b) surfaces of Nd3+:Lu2O3 ceramic.
Fig. 4
Fig. 4 Transmittance spectra of Nd3+:Lu2O3 ceramic before and after annealing. The theoretical transmission of Lu2O3 was calculated from the data in [23]. The inset shows photographs of the specimens before (left) and after (right) annealing.
Fig. 5
Fig. 5 Absorption cross-section spectrum of Nd3+:Lu2O3 ceramic after annealing.
Fig. 6
Fig. 6 (a) Emission spectrum of Nd3+:Lu2O3 ceramic pumped by an 808-nm diode laser and (b) fluorescence decay curve at 1076 nm of Nd3+:Lu2O3 ceramic.
Fig. 7
Fig. 7 Output power as a function of the absorbed power for the transparent Nd3+:Lu2O3 ceramic.

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