Abstract

By means of micro-structural and optical characterization of the Yb:Nb:RbTiOPO4 crystal, we demonstrated that the broad emission band of Yb3+ in these crystals is due to the large splitting of the ytterbium ground state only, and not to a complex multisite occupation by the ytterbium ions in the crystals. We used this broad emission band to demonstrate wide laser tuning range and generation of femtosecond laser pulses. Passive mode-locked laser operation has been realized by using a semiconductor saturable absorber mirror, generating ultra short laser pulses of 155 fs, which were very stable in time, under Ti:sapphire laser pumping at 1053 nm.

© 2010 OSA

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    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  25. J. J. Carvajal and R. Solé, “A new self-doubling material: RbTiOPO4:(Nb,Ln),” Opt. Mater. 24(1-2), 425–430 (2003).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  28. J. J. Carvajal, J. L. García-Muñoz, and R. Solé, “Selective distribution of dopants among MO6 octahedra in RbTi0.927Nb0.056Er0.017OPO4: a neutron diffraction study,” J. Solid State Chem. 171(1-2), 257–261 (2003).
    [CrossRef]
  29. R. Ternane, G. Boulon, Y. Guyot, M. T. Cohen-Adad, M. Trabelsi-Ayedi, and N. Kbir-Ariguib, “Crystal growth, structural and spectroscopic characterization of undoped and Yb3+-doped oxyboroapatite fibers,” Opt. Mater. 22(2), 117–128 (2003).
    [CrossRef]
  30. G. Boulon, A. Collombet, A. Brenier, M. T. Cohen-Adad, A. Yoshikawa, K. Lebbou, J. Lee, and T. Fukuda, “Structural and spectroscopic characterization of nominal Yb3+:Ca8La2(PO4)6O2 oxyapatite subgle crystal fibers grown by the micro-pulling-down method,” Adv. Funct. Mater. 11(4), 263–270 (2001).
    [CrossRef]
  31. G. Boulon, A. Brenier, L. Laversenne, Y. Guyot, C. Goutaudier, M. T. Cohen-Adad, G. Métrat, and N. Muhlstein, “Search of optimized trivalent ytterbium doped-inorganic crystals for laser applications,” J. Alloy. Comp. 341(1-2), 2–7 (2002).
    [CrossRef]
  32. V. V. Ovsyankin, Spectroscopy of Solids Containing Rare Earth Ions (Elsevier Science, 1987).
  33. J. J. Carvajal and R. Solé, “Spectroscopic and second harmonic generation properties of a new crystal: Yb-doped RbTiOPO4,” Opt. Mater. 26(3), 313–317 (2004).
    [CrossRef]
  34. A. Peña, J. J. Carvajal, J. Massons, J. Gavaldà, F. Díaz, and M. Aguiló, “Yb:Ta:RbTiOPO4, a new strategy to further increase the lanthanide concentration in crystals of the KTiOPO4 family,” Chem. Mater. 19(16), 4069–4076 (2007).
    [CrossRef]

2009 (1)

J. J. Carvajal, G. Ciatto, A. Peña, M. C. Pujol, J. Gavaldà, F. Díaz, and M. Aguiló, “Lattice location and short range ordering of doping ions in RbTiOPO4,” Appl. Phys. Lett. 94(6), 061908 (2009).
[CrossRef]

2007 (3)

2006 (2)

M. Vaccari and P. Fornasini, “Einstein and Debye models for EXAFS parallel and perpendicular mean-square relative displacements,” J. Synchrotron Radiat. 13(4), 321–325 (2006).
[CrossRef] [PubMed]

J. J. Carvajal, C. F. Woensdregt, R. Solé, F. Díaz, and M. Aguiló, “Change in morphology of RbTiOPO4 introduced by the presence of Nb,” Cryst. Growth Des. 6(12), 2667–2673 (2006).
[CrossRef]

2005 (1)

B. Ravel and M. Newville, “ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT,” J. Synchrotron Radiat. 12( 4), 537–541 (2005).
[CrossRef] [PubMed]

2004 (1)

J. J. Carvajal and R. Solé, “Spectroscopic and second harmonic generation properties of a new crystal: Yb-doped RbTiOPO4,” Opt. Mater. 26(3), 313–317 (2004).
[CrossRef]

2003 (4)

J. J. Carvajal and R. Solé, “A new self-doubling material: RbTiOPO4:(Nb,Ln),” Opt. Mater. 24(1-2), 425–430 (2003).
[CrossRef]

J. J. Carvajal, J. L. García-Muñoz, R. Solé, J. Gavaldà, X. Massons, F. Solans, Díaz, and M. Aguiló, “Charge self-compensation in the non-linear optical crystals Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4,” Chem. Mater. 15(12), 2338–2345 (2003).
[CrossRef]

J. J. Carvajal, J. L. García-Muñoz, and R. Solé, “Selective distribution of dopants among MO6 octahedra in RbTi0.927Nb0.056Er0.017OPO4: a neutron diffraction study,” J. Solid State Chem. 171(1-2), 257–261 (2003).
[CrossRef]

R. Ternane, G. Boulon, Y. Guyot, M. T. Cohen-Adad, M. Trabelsi-Ayedi, and N. Kbir-Ariguib, “Crystal growth, structural and spectroscopic characterization of undoped and Yb3+-doped oxyboroapatite fibers,” Opt. Mater. 22(2), 117–128 (2003).
[CrossRef]

2002 (3)

G. Boulon, A. Brenier, L. Laversenne, Y. Guyot, C. Goutaudier, M. T. Cohen-Adad, G. Métrat, and N. Muhlstein, “Search of optimized trivalent ytterbium doped-inorganic crystals for laser applications,” J. Alloy. Comp. 341(1-2), 2–7 (2002).
[CrossRef]

X. Mateos, F. Güell, M. C. Pujol, M. A. Bursukova, and R. Solé, “Green luminescence of Er3+ in stoichiometric KYb(WO4)2 single crystals,” Appl. Phys. Lett. 80, 4510–4512 (2002).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystallization region, crystal growth, and characterization of rubidium titanyl phosphate codoped with niobium and lanthanide ions,” Chem. Mater. 14(7), 3136–3142 (2002).
[CrossRef]

2001 (2)

J. J. Carvajal, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystal growth of RbTiOPO4:Nb: a new nonlinear optical host for rare earth doping,” Cryst. Growth Des. 1(6), 479–484 (2001).
[CrossRef]

G. Boulon, A. Collombet, A. Brenier, M. T. Cohen-Adad, A. Yoshikawa, K. Lebbou, J. Lee, and T. Fukuda, “Structural and spectroscopic characterization of nominal Yb3+:Ca8La2(PO4)6O2 oxyapatite subgle crystal fibers grown by the micro-pulling-down method,” Adv. Funct. Mater. 11(4), 263–270 (2001).
[CrossRef]

2000 (3)

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
[CrossRef]

A. Filipponi, M. Borowski, D. T. Bowron, S. Ansell, A. D. Cicco, S. D. Panfilis, and J. P. Itié, “An experimental station for advanced research on condensed matter under extreme conditions at the European Synchrotron Radiation Facility-BM29 beamline,” Rev. Sci. Instrum. 71(6), 2422–2432 (2000).
[CrossRef]

A. Brenier, “The self-doubling and summing lasers: overview and modeling,” J. Lumin. 91(3-4), 121–132 (2000).
[CrossRef]

1999 (1)

C. Zaldo, M. Rico, J. J. Carvajal, and F. Díaz, “Progress in crystal growth and characterisation of rare-earth doped non-linear KTP crystals for laser applications,” Opt. Mater. 13(1), 175–180 (1999).
[CrossRef]

1998 (1)

A. L. Ankudinov, B. Ravel, J. J. Rehr, and S. D. Conradson, “Real-space multiple-scattering calculation and interpretation of x-ray absorption near-edge structure,” Phys. Rev. B 58(12), 7565–7576 (1998).
[CrossRef]

1997 (1)

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

1996 (2)

A. Ishibashi, “II-VI blue-green light emitters,” J. Cryst. Growth 159(1-4), 555–565 (1996).
[CrossRef]

S. Nakamura, M. Senoh, S. Nagahama, N. Iwasa, T. Yamada, T. Matsushita, H. Kiyoku, and Y. Sugimot, “InGaN-based multi-quantum-well-structure laser diodes,” Jpn. J. Appl. Phys. 35(Part 2, No. 1B), L74–L76 (1996).
[CrossRef]

1992 (1)

P. A. Thomas, S. C. Mayo, and B. E. Watts, “Crystal structures of RbTiOAsO4, KTiO(P0.58, As0.42)O4, RbTiOPO4 and (Rb0.465, K0.535)TiOPO4, and analysis of pseudosymmetry in crystals of the KTiOPO4 family,” Acta Crystallogr. B 48(4), 401–407 (1992).
[CrossRef]

1991 (4)

D. F. Eaton, “Nonlinear optical materials,” Science 253(5017), 281–287 (1991).
[CrossRef] [PubMed]

L. K. Cheng, J. D. Bierlein, and A. A. Ballman, “Crystal growth of KTiOPO4 isomorphs from tungstate and molybdate fluxes,” J. Cryst. Growth 110(4), 697–703 (1991).
[CrossRef]

M. Oomen, “Upconversion in fluoride glass fibers,” Adv. Mater. 3(7-8), 403–406 (1991).
[CrossRef]

K. Mizuuchi, K. Yamamoto, and T. Taniuchi, “Second-harmonic generation of blue light in a LiTaO3 waveguide,” Appl. Phys. Lett. 58(24), 2732–2734 (1991).
[CrossRef]

1987 (1)

1984 (1)

J. L. Pouchou and F. Pichoir, “New model quantitative x-ray microanalysis, I. Application to the analysis of homogenous samples,” Rech. Aerosp. 3, 13–38 (1984).

1977 (1)

J. Jaklevic, J. A. Kirby, M. P. Klein, A. S. Robertson, G. S. Brown, and P. Eisenberger, “Fluorescence detection of exafs: sensitivity enhancement for dilute species and thin films,” Solid State Commun. 23(9), 679–682 (1977).
[CrossRef]

Aguiló, M.

J. J. Carvajal, G. Ciatto, A. Peña, M. C. Pujol, J. Gavaldà, F. Díaz, and M. Aguiló, “Lattice location and short range ordering of doping ions in RbTiOPO4,” Appl. Phys. Lett. 94(6), 061908 (2009).
[CrossRef]

A. Peña, J. J. Carvajal, M. C. Pujol, X. Mateos, M. Aguiló, F. Díaz, V. Petrov, P. Segonds, and B. Boulanger, “Yb(3+) spectroscopy in (Nb or Ta):RbTiOPO(4) single crystals for laser applications,” Opt. Express 15(22), 14580–14590 (2007).
[CrossRef] [PubMed]

A. Peña, J. J. Carvajal, J. Massons, J. Gavaldà, F. Díaz, and M. Aguiló, “Yb:Ta:RbTiOPO4, a new strategy to further increase the lanthanide concentration in crystals of the KTiOPO4 family,” Chem. Mater. 19(16), 4069–4076 (2007).
[CrossRef]

X. Mateos, V. Petrov, A. Peña, J. J. Carvajal, M. Aguiló, F. Díaz, P. Segonds, and B. Boulanger, “Laser operation of Yb3+ in the acentric RbTiOPO4 codoped with Nb5+.,” Opt. Lett. 32(13), 1929–1931 (2007).
[CrossRef] [PubMed]

J. J. Carvajal, C. F. Woensdregt, R. Solé, F. Díaz, and M. Aguiló, “Change in morphology of RbTiOPO4 introduced by the presence of Nb,” Cryst. Growth Des. 6(12), 2667–2673 (2006).
[CrossRef]

J. J. Carvajal, J. L. García-Muñoz, R. Solé, J. Gavaldà, X. Massons, F. Solans, Díaz, and M. Aguiló, “Charge self-compensation in the non-linear optical crystals Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4,” Chem. Mater. 15(12), 2338–2345 (2003).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystallization region, crystal growth, and characterization of rubidium titanyl phosphate codoped with niobium and lanthanide ions,” Chem. Mater. 14(7), 3136–3142 (2002).
[CrossRef]

J. J. Carvajal, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystal growth of RbTiOPO4:Nb: a new nonlinear optical host for rare earth doping,” Cryst. Growth Des. 1(6), 479–484 (2001).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
[CrossRef]

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

Ankudinov, A. L.

A. L. Ankudinov, B. Ravel, J. J. Rehr, and S. D. Conradson, “Real-space multiple-scattering calculation and interpretation of x-ray absorption near-edge structure,” Phys. Rev. B 58(12), 7565–7576 (1998).
[CrossRef]

Ansell, S.

A. Filipponi, M. Borowski, D. T. Bowron, S. Ansell, A. D. Cicco, S. D. Panfilis, and J. P. Itié, “An experimental station for advanced research on condensed matter under extreme conditions at the European Synchrotron Radiation Facility-BM29 beamline,” Rev. Sci. Instrum. 71(6), 2422–2432 (2000).
[CrossRef]

Ballman, A. A.

L. K. Cheng, J. D. Bierlein, and A. A. Ballman, “Crystal growth of KTiOPO4 isomorphs from tungstate and molybdate fluxes,” J. Cryst. Growth 110(4), 697–703 (1991).
[CrossRef]

Bierlein, J. D.

L. K. Cheng, J. D. Bierlein, and A. A. Ballman, “Crystal growth of KTiOPO4 isomorphs from tungstate and molybdate fluxes,” J. Cryst. Growth 110(4), 697–703 (1991).
[CrossRef]

Borowski, M.

A. Filipponi, M. Borowski, D. T. Bowron, S. Ansell, A. D. Cicco, S. D. Panfilis, and J. P. Itié, “An experimental station for advanced research on condensed matter under extreme conditions at the European Synchrotron Radiation Facility-BM29 beamline,” Rev. Sci. Instrum. 71(6), 2422–2432 (2000).
[CrossRef]

Boulanger, B.

Boulon, G.

R. Ternane, G. Boulon, Y. Guyot, M. T. Cohen-Adad, M. Trabelsi-Ayedi, and N. Kbir-Ariguib, “Crystal growth, structural and spectroscopic characterization of undoped and Yb3+-doped oxyboroapatite fibers,” Opt. Mater. 22(2), 117–128 (2003).
[CrossRef]

G. Boulon, A. Brenier, L. Laversenne, Y. Guyot, C. Goutaudier, M. T. Cohen-Adad, G. Métrat, and N. Muhlstein, “Search of optimized trivalent ytterbium doped-inorganic crystals for laser applications,” J. Alloy. Comp. 341(1-2), 2–7 (2002).
[CrossRef]

G. Boulon, A. Collombet, A. Brenier, M. T. Cohen-Adad, A. Yoshikawa, K. Lebbou, J. Lee, and T. Fukuda, “Structural and spectroscopic characterization of nominal Yb3+:Ca8La2(PO4)6O2 oxyapatite subgle crystal fibers grown by the micro-pulling-down method,” Adv. Funct. Mater. 11(4), 263–270 (2001).
[CrossRef]

Bowron, D. T.

A. Filipponi, M. Borowski, D. T. Bowron, S. Ansell, A. D. Cicco, S. D. Panfilis, and J. P. Itié, “An experimental station for advanced research on condensed matter under extreme conditions at the European Synchrotron Radiation Facility-BM29 beamline,” Rev. Sci. Instrum. 71(6), 2422–2432 (2000).
[CrossRef]

Brenier, A.

G. Boulon, A. Brenier, L. Laversenne, Y. Guyot, C. Goutaudier, M. T. Cohen-Adad, G. Métrat, and N. Muhlstein, “Search of optimized trivalent ytterbium doped-inorganic crystals for laser applications,” J. Alloy. Comp. 341(1-2), 2–7 (2002).
[CrossRef]

G. Boulon, A. Collombet, A. Brenier, M. T. Cohen-Adad, A. Yoshikawa, K. Lebbou, J. Lee, and T. Fukuda, “Structural and spectroscopic characterization of nominal Yb3+:Ca8La2(PO4)6O2 oxyapatite subgle crystal fibers grown by the micro-pulling-down method,” Adv. Funct. Mater. 11(4), 263–270 (2001).
[CrossRef]

A. Brenier, “The self-doubling and summing lasers: overview and modeling,” J. Lumin. 91(3-4), 121–132 (2000).
[CrossRef]

Brown, G. S.

J. Jaklevic, J. A. Kirby, M. P. Klein, A. S. Robertson, G. S. Brown, and P. Eisenberger, “Fluorescence detection of exafs: sensitivity enhancement for dilute species and thin films,” Solid State Commun. 23(9), 679–682 (1977).
[CrossRef]

Bursukova, M. A.

X. Mateos, F. Güell, M. C. Pujol, M. A. Bursukova, and R. Solé, “Green luminescence of Er3+ in stoichiometric KYb(WO4)2 single crystals,” Appl. Phys. Lett. 80, 4510–4512 (2002).
[CrossRef]

Carvajal, J. J.

J. J. Carvajal, G. Ciatto, A. Peña, M. C. Pujol, J. Gavaldà, F. Díaz, and M. Aguiló, “Lattice location and short range ordering of doping ions in RbTiOPO4,” Appl. Phys. Lett. 94(6), 061908 (2009).
[CrossRef]

A. Peña, J. J. Carvajal, M. C. Pujol, X. Mateos, M. Aguiló, F. Díaz, V. Petrov, P. Segonds, and B. Boulanger, “Yb(3+) spectroscopy in (Nb or Ta):RbTiOPO(4) single crystals for laser applications,” Opt. Express 15(22), 14580–14590 (2007).
[CrossRef] [PubMed]

A. Peña, J. J. Carvajal, J. Massons, J. Gavaldà, F. Díaz, and M. Aguiló, “Yb:Ta:RbTiOPO4, a new strategy to further increase the lanthanide concentration in crystals of the KTiOPO4 family,” Chem. Mater. 19(16), 4069–4076 (2007).
[CrossRef]

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J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystallization region, crystal growth, and characterization of rubidium titanyl phosphate codoped with niobium and lanthanide ions,” Chem. Mater. 14(7), 3136–3142 (2002).
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J. J. Carvajal, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystal growth of RbTiOPO4:Nb: a new nonlinear optical host for rare earth doping,” Cryst. Growth Des. 1(6), 479–484 (2001).
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J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
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J. J. Carvajal, G. Ciatto, A. Peña, M. C. Pujol, J. Gavaldà, F. Díaz, and M. Aguiló, “Lattice location and short range ordering of doping ions in RbTiOPO4,” Appl. Phys. Lett. 94(6), 061908 (2009).
[CrossRef]

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[CrossRef] [PubMed]

A. Peña, J. J. Carvajal, J. Massons, J. Gavaldà, F. Díaz, and M. Aguiló, “Yb:Ta:RbTiOPO4, a new strategy to further increase the lanthanide concentration in crystals of the KTiOPO4 family,” Chem. Mater. 19(16), 4069–4076 (2007).
[CrossRef]

X. Mateos, V. Petrov, A. Peña, J. J. Carvajal, M. Aguiló, F. Díaz, P. Segonds, and B. Boulanger, “Laser operation of Yb3+ in the acentric RbTiOPO4 codoped with Nb5+.,” Opt. Lett. 32(13), 1929–1931 (2007).
[CrossRef] [PubMed]

Peshev, P.

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

Petrov, V.

Pichoir, F.

J. L. Pouchou and F. Pichoir, “New model quantitative x-ray microanalysis, I. Application to the analysis of homogenous samples,” Rech. Aerosp. 3, 13–38 (1984).

Pouchou, J. L.

J. L. Pouchou and F. Pichoir, “New model quantitative x-ray microanalysis, I. Application to the analysis of homogenous samples,” Rech. Aerosp. 3, 13–38 (1984).

Pujol, M. C.

J. J. Carvajal, G. Ciatto, A. Peña, M. C. Pujol, J. Gavaldà, F. Díaz, and M. Aguiló, “Lattice location and short range ordering of doping ions in RbTiOPO4,” Appl. Phys. Lett. 94(6), 061908 (2009).
[CrossRef]

A. Peña, J. J. Carvajal, M. C. Pujol, X. Mateos, M. Aguiló, F. Díaz, V. Petrov, P. Segonds, and B. Boulanger, “Yb(3+) spectroscopy in (Nb or Ta):RbTiOPO(4) single crystals for laser applications,” Opt. Express 15(22), 14580–14590 (2007).
[CrossRef] [PubMed]

X. Mateos, F. Güell, M. C. Pujol, M. A. Bursukova, and R. Solé, “Green luminescence of Er3+ in stoichiometric KYb(WO4)2 single crystals,” Appl. Phys. Lett. 80, 4510–4512 (2002).
[CrossRef]

Ravel, B.

B. Ravel and M. Newville, “ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT,” J. Synchrotron Radiat. 12( 4), 537–541 (2005).
[CrossRef] [PubMed]

A. L. Ankudinov, B. Ravel, J. J. Rehr, and S. D. Conradson, “Real-space multiple-scattering calculation and interpretation of x-ray absorption near-edge structure,” Phys. Rev. B 58(12), 7565–7576 (1998).
[CrossRef]

Rehr, J. J.

A. L. Ankudinov, B. Ravel, J. J. Rehr, and S. D. Conradson, “Real-space multiple-scattering calculation and interpretation of x-ray absorption near-edge structure,” Phys. Rev. B 58(12), 7565–7576 (1998).
[CrossRef]

Rico, M.

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
[CrossRef]

C. Zaldo, M. Rico, J. J. Carvajal, and F. Díaz, “Progress in crystal growth and characterisation of rare-earth doped non-linear KTP crystals for laser applications,” Opt. Mater. 13(1), 175–180 (1999).
[CrossRef]

Robertson, A. S.

J. Jaklevic, J. A. Kirby, M. P. Klein, A. S. Robertson, G. S. Brown, and P. Eisenberger, “Fluorescence detection of exafs: sensitivity enhancement for dilute species and thin films,” Solid State Commun. 23(9), 679–682 (1977).
[CrossRef]

Ruiz, X.

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

Segonds, P.

Senoh, M.

S. Nakamura, M. Senoh, S. Nagahama, N. Iwasa, T. Yamada, T. Matsushita, H. Kiyoku, and Y. Sugimot, “InGaN-based multi-quantum-well-structure laser diodes,” Jpn. J. Appl. Phys. 35(Part 2, No. 1B), L74–L76 (1996).
[CrossRef]

Solans, F.

J. J. Carvajal, J. L. García-Muñoz, R. Solé, J. Gavaldà, X. Massons, F. Solans, Díaz, and M. Aguiló, “Charge self-compensation in the non-linear optical crystals Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4,” Chem. Mater. 15(12), 2338–2345 (2003).
[CrossRef]

Solé, R.

J. J. Carvajal, C. F. Woensdregt, R. Solé, F. Díaz, and M. Aguiló, “Change in morphology of RbTiOPO4 introduced by the presence of Nb,” Cryst. Growth Des. 6(12), 2667–2673 (2006).
[CrossRef]

J. J. Carvajal and R. Solé, “Spectroscopic and second harmonic generation properties of a new crystal: Yb-doped RbTiOPO4,” Opt. Mater. 26(3), 313–317 (2004).
[CrossRef]

J. J. Carvajal, J. L. García-Muñoz, R. Solé, J. Gavaldà, X. Massons, F. Solans, Díaz, and M. Aguiló, “Charge self-compensation in the non-linear optical crystals Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4,” Chem. Mater. 15(12), 2338–2345 (2003).
[CrossRef]

J. J. Carvajal, J. L. García-Muñoz, and R. Solé, “Selective distribution of dopants among MO6 octahedra in RbTi0.927Nb0.056Er0.017OPO4: a neutron diffraction study,” J. Solid State Chem. 171(1-2), 257–261 (2003).
[CrossRef]

J. J. Carvajal and R. Solé, “A new self-doubling material: RbTiOPO4:(Nb,Ln),” Opt. Mater. 24(1-2), 425–430 (2003).
[CrossRef]

X. Mateos, F. Güell, M. C. Pujol, M. A. Bursukova, and R. Solé, “Green luminescence of Er3+ in stoichiometric KYb(WO4)2 single crystals,” Appl. Phys. Lett. 80, 4510–4512 (2002).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystallization region, crystal growth, and characterization of rubidium titanyl phosphate codoped with niobium and lanthanide ions,” Chem. Mater. 14(7), 3136–3142 (2002).
[CrossRef]

J. J. Carvajal, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystal growth of RbTiOPO4:Nb: a new nonlinear optical host for rare earth doping,” Cryst. Growth Des. 1(6), 479–484 (2001).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
[CrossRef]

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

Stolen, R. H.

Sugimot, Y.

S. Nakamura, M. Senoh, S. Nagahama, N. Iwasa, T. Yamada, T. Matsushita, H. Kiyoku, and Y. Sugimot, “InGaN-based multi-quantum-well-structure laser diodes,” Jpn. J. Appl. Phys. 35(Part 2, No. 1B), L74–L76 (1996).
[CrossRef]

Taniuchi, T.

K. Mizuuchi, K. Yamamoto, and T. Taniuchi, “Second-harmonic generation of blue light in a LiTaO3 waveguide,” Appl. Phys. Lett. 58(24), 2732–2734 (1991).
[CrossRef]

Ternane, R.

R. Ternane, G. Boulon, Y. Guyot, M. T. Cohen-Adad, M. Trabelsi-Ayedi, and N. Kbir-Ariguib, “Crystal growth, structural and spectroscopic characterization of undoped and Yb3+-doped oxyboroapatite fibers,” Opt. Mater. 22(2), 117–128 (2003).
[CrossRef]

Thomas, P. A.

P. A. Thomas, S. C. Mayo, and B. E. Watts, “Crystal structures of RbTiOAsO4, KTiO(P0.58, As0.42)O4, RbTiOPO4 and (Rb0.465, K0.535)TiOPO4, and analysis of pseudosymmetry in crystals of the KTiOPO4 family,” Acta Crystallogr. B 48(4), 401–407 (1992).
[CrossRef]

Tom, H. W. K.

Trabelsi-Ayedi, M.

R. Ternane, G. Boulon, Y. Guyot, M. T. Cohen-Adad, M. Trabelsi-Ayedi, and N. Kbir-Ariguib, “Crystal growth, structural and spectroscopic characterization of undoped and Yb3+-doped oxyboroapatite fibers,” Opt. Mater. 22(2), 117–128 (2003).
[CrossRef]

Vaccari, M.

M. Vaccari and P. Fornasini, “Einstein and Debye models for EXAFS parallel and perpendicular mean-square relative displacements,” J. Synchrotron Radiat. 13(4), 321–325 (2006).
[CrossRef] [PubMed]

Watts, B. E.

P. A. Thomas, S. C. Mayo, and B. E. Watts, “Crystal structures of RbTiOAsO4, KTiO(P0.58, As0.42)O4, RbTiOPO4 and (Rb0.465, K0.535)TiOPO4, and analysis of pseudosymmetry in crystals of the KTiOPO4 family,” Acta Crystallogr. B 48(4), 401–407 (1992).
[CrossRef]

Woensdregt, C. F.

J. J. Carvajal, C. F. Woensdregt, R. Solé, F. Díaz, and M. Aguiló, “Change in morphology of RbTiOPO4 introduced by the presence of Nb,” Cryst. Growth Des. 6(12), 2667–2673 (2006).
[CrossRef]

Yamada, T.

S. Nakamura, M. Senoh, S. Nagahama, N. Iwasa, T. Yamada, T. Matsushita, H. Kiyoku, and Y. Sugimot, “InGaN-based multi-quantum-well-structure laser diodes,” Jpn. J. Appl. Phys. 35(Part 2, No. 1B), L74–L76 (1996).
[CrossRef]

Yamamoto, K.

K. Mizuuchi, K. Yamamoto, and T. Taniuchi, “Second-harmonic generation of blue light in a LiTaO3 waveguide,” Appl. Phys. Lett. 58(24), 2732–2734 (1991).
[CrossRef]

Yoshikawa, A.

G. Boulon, A. Collombet, A. Brenier, M. T. Cohen-Adad, A. Yoshikawa, K. Lebbou, J. Lee, and T. Fukuda, “Structural and spectroscopic characterization of nominal Yb3+:Ca8La2(PO4)6O2 oxyapatite subgle crystal fibers grown by the micro-pulling-down method,” Adv. Funct. Mater. 11(4), 263–270 (2001).
[CrossRef]

Zaldo, C.

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
[CrossRef]

C. Zaldo, M. Rico, J. J. Carvajal, and F. Díaz, “Progress in crystal growth and characterisation of rare-earth doped non-linear KTP crystals for laser applications,” Opt. Mater. 13(1), 175–180 (1999).
[CrossRef]

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

Acta Crystallogr. B (1)

P. A. Thomas, S. C. Mayo, and B. E. Watts, “Crystal structures of RbTiOAsO4, KTiO(P0.58, As0.42)O4, RbTiOPO4 and (Rb0.465, K0.535)TiOPO4, and analysis of pseudosymmetry in crystals of the KTiOPO4 family,” Acta Crystallogr. B 48(4), 401–407 (1992).
[CrossRef]

Adv. Funct. Mater. (1)

G. Boulon, A. Collombet, A. Brenier, M. T. Cohen-Adad, A. Yoshikawa, K. Lebbou, J. Lee, and T. Fukuda, “Structural and spectroscopic characterization of nominal Yb3+:Ca8La2(PO4)6O2 oxyapatite subgle crystal fibers grown by the micro-pulling-down method,” Adv. Funct. Mater. 11(4), 263–270 (2001).
[CrossRef]

Adv. Mater. (1)

M. Oomen, “Upconversion in fluoride glass fibers,” Adv. Mater. 3(7-8), 403–406 (1991).
[CrossRef]

Appl. Phys. Lett. (3)

K. Mizuuchi, K. Yamamoto, and T. Taniuchi, “Second-harmonic generation of blue light in a LiTaO3 waveguide,” Appl. Phys. Lett. 58(24), 2732–2734 (1991).
[CrossRef]

X. Mateos, F. Güell, M. C. Pujol, M. A. Bursukova, and R. Solé, “Green luminescence of Er3+ in stoichiometric KYb(WO4)2 single crystals,” Appl. Phys. Lett. 80, 4510–4512 (2002).
[CrossRef]

J. J. Carvajal, G. Ciatto, A. Peña, M. C. Pujol, J. Gavaldà, F. Díaz, and M. Aguiló, “Lattice location and short range ordering of doping ions in RbTiOPO4,” Appl. Phys. Lett. 94(6), 061908 (2009).
[CrossRef]

Chem. Mater. (5)

A. Peña, J. J. Carvajal, J. Massons, J. Gavaldà, F. Díaz, and M. Aguiló, “Yb:Ta:RbTiOPO4, a new strategy to further increase the lanthanide concentration in crystals of the KTiOPO4 family,” Chem. Mater. 19(16), 4069–4076 (2007).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Rico, C. Zaldo, M. Aguiló, and F. Díaz, “Enhancement of the erbium concentration in RbTiOPO4 by codoping with niobium,” Chem. Mater. 12(10), 3171–3180 (2000).
[CrossRef]

J. J. Carvajal, V. Nikolov, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystallization region, crystal growth, and characterization of rubidium titanyl phosphate codoped with niobium and lanthanide ions,” Chem. Mater. 14(7), 3136–3142 (2002).
[CrossRef]

R. Solé, V. Nikolov, I. Koseva, P. Peshev, X. Ruiz, C. Zaldo, M. J. Martín, M. Aguiló, and F. Díaz, “Conditions and possibilities for rare-earth doping of KTiOPO4 flux-grown single crystals,” Chem. Mater. 9(12), 2745–2749 (1997).
[CrossRef]

J. J. Carvajal, J. L. García-Muñoz, R. Solé, J. Gavaldà, X. Massons, F. Solans, Díaz, and M. Aguiló, “Charge self-compensation in the non-linear optical crystals Rb0.855Ti0.955Nb0.045OPO4 and RbTi0.927Nb0.056Er0.017OPO4,” Chem. Mater. 15(12), 2338–2345 (2003).
[CrossRef]

Cryst. Growth Des. (2)

J. J. Carvajal, R. Solé, J. Gavaldà, J. Massons, M. Aguiló, and F. Díaz, “Crystal growth of RbTiOPO4:Nb: a new nonlinear optical host for rare earth doping,” Cryst. Growth Des. 1(6), 479–484 (2001).
[CrossRef]

J. J. Carvajal, C. F. Woensdregt, R. Solé, F. Díaz, and M. Aguiló, “Change in morphology of RbTiOPO4 introduced by the presence of Nb,” Cryst. Growth Des. 6(12), 2667–2673 (2006).
[CrossRef]

J. Alloy. Comp. (1)

G. Boulon, A. Brenier, L. Laversenne, Y. Guyot, C. Goutaudier, M. T. Cohen-Adad, G. Métrat, and N. Muhlstein, “Search of optimized trivalent ytterbium doped-inorganic crystals for laser applications,” J. Alloy. Comp. 341(1-2), 2–7 (2002).
[CrossRef]

J. Cryst. Growth (2)

L. K. Cheng, J. D. Bierlein, and A. A. Ballman, “Crystal growth of KTiOPO4 isomorphs from tungstate and molybdate fluxes,” J. Cryst. Growth 110(4), 697–703 (1991).
[CrossRef]

A. Ishibashi, “II-VI blue-green light emitters,” J. Cryst. Growth 159(1-4), 555–565 (1996).
[CrossRef]

J. Lumin. (1)

A. Brenier, “The self-doubling and summing lasers: overview and modeling,” J. Lumin. 91(3-4), 121–132 (2000).
[CrossRef]

J. Solid State Chem. (1)

J. J. Carvajal, J. L. García-Muñoz, and R. Solé, “Selective distribution of dopants among MO6 octahedra in RbTi0.927Nb0.056Er0.017OPO4: a neutron diffraction study,” J. Solid State Chem. 171(1-2), 257–261 (2003).
[CrossRef]

J. Synchrotron Radiat. (2)

B. Ravel and M. Newville, “ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT,” J. Synchrotron Radiat. 12( 4), 537–541 (2005).
[CrossRef] [PubMed]

M. Vaccari and P. Fornasini, “Einstein and Debye models for EXAFS parallel and perpendicular mean-square relative displacements,” J. Synchrotron Radiat. 13(4), 321–325 (2006).
[CrossRef] [PubMed]

Jpn. J. Appl. Phys. (1)

S. Nakamura, M. Senoh, S. Nagahama, N. Iwasa, T. Yamada, T. Matsushita, H. Kiyoku, and Y. Sugimot, “InGaN-based multi-quantum-well-structure laser diodes,” Jpn. J. Appl. Phys. 35(Part 2, No. 1B), L74–L76 (1996).
[CrossRef]

Opt. Express (1)

Opt. Lett. (2)

Opt. Mater. (4)

J. J. Carvajal and R. Solé, “Spectroscopic and second harmonic generation properties of a new crystal: Yb-doped RbTiOPO4,” Opt. Mater. 26(3), 313–317 (2004).
[CrossRef]

J. J. Carvajal and R. Solé, “A new self-doubling material: RbTiOPO4:(Nb,Ln),” Opt. Mater. 24(1-2), 425–430 (2003).
[CrossRef]

R. Ternane, G. Boulon, Y. Guyot, M. T. Cohen-Adad, M. Trabelsi-Ayedi, and N. Kbir-Ariguib, “Crystal growth, structural and spectroscopic characterization of undoped and Yb3+-doped oxyboroapatite fibers,” Opt. Mater. 22(2), 117–128 (2003).
[CrossRef]

C. Zaldo, M. Rico, J. J. Carvajal, and F. Díaz, “Progress in crystal growth and characterisation of rare-earth doped non-linear KTP crystals for laser applications,” Opt. Mater. 13(1), 175–180 (1999).
[CrossRef]

Phys. Rev. B (1)

A. L. Ankudinov, B. Ravel, J. J. Rehr, and S. D. Conradson, “Real-space multiple-scattering calculation and interpretation of x-ray absorption near-edge structure,” Phys. Rev. B 58(12), 7565–7576 (1998).
[CrossRef]

Rech. Aerosp. (1)

J. L. Pouchou and F. Pichoir, “New model quantitative x-ray microanalysis, I. Application to the analysis of homogenous samples,” Rech. Aerosp. 3, 13–38 (1984).

Rev. Sci. Instrum. (1)

A. Filipponi, M. Borowski, D. T. Bowron, S. Ansell, A. D. Cicco, S. D. Panfilis, and J. P. Itié, “An experimental station for advanced research on condensed matter under extreme conditions at the European Synchrotron Radiation Facility-BM29 beamline,” Rev. Sci. Instrum. 71(6), 2422–2432 (2000).
[CrossRef]

Science (1)

D. F. Eaton, “Nonlinear optical materials,” Science 253(5017), 281–287 (1991).
[CrossRef] [PubMed]

Solid State Commun. (1)

J. Jaklevic, J. A. Kirby, M. P. Klein, A. S. Robertson, G. S. Brown, and P. Eisenberger, “Fluorescence detection of exafs: sensitivity enhancement for dilute species and thin films,” Solid State Commun. 23(9), 679–682 (1977).
[CrossRef]

Other (1)

V. V. Ovsyankin, Spectroscopy of Solids Containing Rare Earth Ions (Elsevier Science, 1987).

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Figures (12)

Fig. 1
Fig. 1

Pictures of a Yb:Nb:RTP single crystal obtained by the TSSG-SC method in views (a) perpendicular to the a crystallographic axis, and (b) perpendicular to the b axis. (c) and (d) Schematic representation of its morphology along the same directions.

Fig. 2
Fig. 2

X-ray powder diffraction pattern of Yb:Nb:RTP and RTP, and the standard of RTP included in the JCPDS-ICDD.

Fig. 3
Fig. 3

Background subtracted k*χ(k) spectra.

Fig. 4
Fig. 4

Fits performed on the Fourier Transform of the EXAFS spectrum of sample Yb:RTP (1) either with a model in which Yb dopants substitute Ti atoms (red circles) or under the hypothesis of location in Rb sites (olive squares).

Fig. 5
Fig. 5

Fits performed on the Fourier Transform of the EXAFS spectra of all samples assuming that Yb is substitutional to Ti. For samples containing Nb, a third shell Yb-Nb contribution to the EXAFS signal has been included in the fit.

Fig. 6
Fig. 6

Fits performed on the Fourier Transform of the EXAFS spectra of (Nb, Yb) co-doped samples assuming that Yb is substitutional to Ti. For both sample Nb:Yb:RTP and Nb:Yb:W:RTP, we show fits performed without (red squares) and with (blue circles) the third shell Yb-Nb contribution. Such contribution allows us to reproduce better the [2,3] Ǻ R-range (apparent distance) of the experimental spectra.

Fig. 7
Fig. 7

Absorption (solid line) and emission (dashed line) cross-sections at room temperature of a Yb:Nb:RTP crystal.

Fig. 8
Fig. 8

Comparison of (a) the absorption, and (b) the emission of Yb3+ in Yb:Nb:RTP crystals at 6 K including the Raman scattering of the crystal (dotted line).

Fig. 9
Fig. 9

Energy diagram of Yb3+ in Yb:Nb:RTP crystals.

Fig. 10
Fig. 10

Laser setup used for the Yb:Nb:RTP laser.

Fig. 11
Fig. 11

Tuning range of the continuous-wave Yb:Nb:RTP laser obtained with a two-plate Lyot filter.

Fig. 12
Fig. 12

Autocorrelation trace (symbols) with a fit (line) of the shortest pulses and the corresponding laser spectrum (inset) (τ – pulse duration, τΔν – time-bandwidth product).

Tables (1)

Tables Icon

Table 1 Structural Parameters Extracted from the Fits of EXAFS Data a

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