Abstract

High-quality InP/ZnS core-shell nanocrystal quantum dots (NQDs) were synthesized as a heavy-metal-free alternative to the gain media of cadmium-based colloidal nanoparticles. Upon UV excitation, amplified spontaneous emission (ASE) and optical gain were observed, for the first time, in close-packed InP/ZnS core-shell NQDs. The ASE wavelength can be selected by tailoring the nanocrystal size over a broad range of the spectrum. Moreover, the optical gain profile of InP/ZnS NQDs was matched to the second order feedback of holographic polymer-dispersed liquid crystal gratings, leading to the very first demonstration of an optically-pumped, nanocrystal laser based on InP/ZnS core-shell NQDs.

© 2011 OSA

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  1. M. Asada, Y. Miyamoto, and Y. Suematsu, “Gain and the threshold of three-dimensional quantum-box lasers,” IEEE J. Quantum Electron. 22(9), 1915–1921 (1986).
    [CrossRef]
  2. Y. Arakawa, “Multidimensional quantum well laser and temperature dependence of its threshold current,” Appl. Phys. Lett. 40(11), 939 (1982).
    [CrossRef]
  3. H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
    [CrossRef]
  4. C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
    [CrossRef]
  5. Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
    [CrossRef]
  6. V. Sukhovatkin, S. Musikhin, I. Gorelikov, S. Cauchi, L. Bakueva, E. Kumacheva, and E. H. Sargent, “Room-temperature amplified spontaneous emission at 1300 nm in solution-processed PbS quantum-dot films,” Opt. Lett. 30(2), 171–173 (2005).
    [CrossRef] [PubMed]
  7. A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
    [CrossRef]
  8. C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
    [CrossRef]
  9. R. D. Schaller, M. A. Petruska, and V. I. Klimov, “Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals,” J. Phys. Chem. B 107(50), 13765–13768 (2003).
    [CrossRef]
  10. J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
    [CrossRef]
  11. U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
    [CrossRef]
  12. P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
    [CrossRef]
  13. W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
    [CrossRef]
  14. R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
    [CrossRef]
  15. M. K. Zundel, “Self-assembled InP quantum dots for red LEDs on Si and injection lasers on GaAs,” J. Cryst. Growth 201-202(3), 1121–1125 (1999).
    [CrossRef]
  16. V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
    [CrossRef] [PubMed]
  17. R. Xie, D. Battaglia, and X. Peng, “Colloidal InP nanocrystals as efficient emitters covering blue to near-infrared,” J. Am. Chem. Soc. 129(50), 15432–15433 (2007).
    [CrossRef] [PubMed]
  18. R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
    [CrossRef] [PubMed]
  19. Y. Liu, “Improvement of the diffraction properties in holographic polymer dispersed liquid crystal bragg gratings,” Opt. Commun. 218(1-3), 27–32 (2003).
    [CrossRef]
  20. Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
    [CrossRef]
  21. M. Achermann, J. Hollingsworth, and V. Klimov, “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals,” Phys. Rev. B 68(24), 245302 (2003).
    [CrossRef]

2011 (1)

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

2010 (1)

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

2009 (3)

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

2007 (2)

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

R. Xie, D. Battaglia, and X. Peng, “Colloidal InP nanocrystals as efficient emitters covering blue to near-infrared,” J. Am. Chem. Soc. 129(50), 15432–15433 (2007).
[CrossRef] [PubMed]

2006 (1)

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

2005 (3)

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

V. Sukhovatkin, S. Musikhin, I. Gorelikov, S. Cauchi, L. Bakueva, E. Kumacheva, and E. H. Sargent, “Room-temperature amplified spontaneous emission at 1300 nm in solution-processed PbS quantum-dot films,” Opt. Lett. 30(2), 171–173 (2005).
[CrossRef] [PubMed]

2004 (1)

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

2003 (3)

R. D. Schaller, M. A. Petruska, and V. I. Klimov, “Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals,” J. Phys. Chem. B 107(50), 13765–13768 (2003).
[CrossRef]

Y. Liu, “Improvement of the diffraction properties in holographic polymer dispersed liquid crystal bragg gratings,” Opt. Commun. 218(1-3), 27–32 (2003).
[CrossRef]

M. Achermann, J. Hollingsworth, and V. Klimov, “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals,” Phys. Rev. B 68(24), 245302 (2003).
[CrossRef]

2002 (2)

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

2000 (1)

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

1999 (1)

M. K. Zundel, “Self-assembled InP quantum dots for red LEDs on Si and injection lasers on GaAs,” J. Cryst. Growth 201-202(3), 1121–1125 (1999).
[CrossRef]

1986 (1)

M. Asada, Y. Miyamoto, and Y. Suematsu, “Gain and the threshold of three-dimensional quantum-box lasers,” IEEE J. Quantum Electron. 22(9), 1915–1921 (1986).
[CrossRef]

1982 (1)

Y. Arakawa, “Multidimensional quantum well laser and temperature dependence of its threshold current,” Appl. Phys. Lett. 40(11), 939 (1982).
[CrossRef]

Achermann, M.

M. Achermann, J. Hollingsworth, and V. Klimov, “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals,” Phys. Rev. B 68(24), 245302 (2003).
[CrossRef]

Arakawa, Y.

Y. Arakawa, “Multidimensional quantum well laser and temperature dependence of its threshold current,” Appl. Phys. Lett. 40(11), 939 (1982).
[CrossRef]

Asada, M.

M. Asada, Y. Miyamoto, and Y. Suematsu, “Gain and the threshold of three-dimensional quantum-box lasers,” IEEE J. Quantum Electron. 22(9), 1915–1921 (1986).
[CrossRef]

Bakueva, L.

Basché, T.

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

Battaglia, D.

R. Xie, D. Battaglia, and X. Peng, “Colloidal InP nanocrystals as efficient emitters covering blue to near-infrared,” J. Am. Chem. Soc. 129(50), 15432–15433 (2007).
[CrossRef] [PubMed]

Bawendi, M.

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

Bawendi, M. G.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Bretagnon, T.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Caruge, J.-M.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

Cauchi, S.

Chan, Y.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

Cheng, A.

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

Chi, T. T. K.

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Dupuis, R. D.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Eichfelder, M.

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

Eisler, H.

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Eisler, H.-J.

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

Gao, S.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Gorelikov, I.

Guillet, T.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Hodgkiss, J. M.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

Hollingsworth, J.

M. Achermann, J. Hollingsworth, and V. Klimov, “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals,” Phys. Rev. B 68(24), 245302 (2003).
[CrossRef]

Hollingsworth, J. A.

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Htoon, H.

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

Jetter, M.

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

Ji, W.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Kimball, B.

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

Klimov, V.

M. Achermann, J. Hollingsworth, and V. Klimov, “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals,” Phys. Rev. B 68(24), 245302 (2003).
[CrossRef]

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

Klimov, V. I.

R. D. Schaller, M. A. Petruska, and V. I. Klimov, “Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals,” J. Phys. Chem. B 107(50), 13765–13768 (2003).
[CrossRef]

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Kolb, U.

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

Kumacheva, E.

Leatherdale, C. A.

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Lefebvre, P.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Li, H. P.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Li, J.

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

Li, L.

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Liem, N. Q.

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Liu, Y.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Y. Liu, “Improvement of the diffraction properties in holographic polymer dispersed liquid crystal bragg gratings,” Opt. Commun. 218(1-3), 27–32 (2003).
[CrossRef]

Malko, A.

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Malko, A. V.

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

Mews, A.

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

Mi, J.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Michler, P.

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

Mikhailovsky, A. A.

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Miyamoto, Y.

M. Asada, Y. Miyamoto, and Y. Suematsu, “Gain and the threshold of three-dimensional quantum-box lasers,” IEEE J. Quantum Electron. 22(9), 1915–1921 (1986).
[CrossRef]

Musikhin, S.

Nocera, D. G.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

Peng, X.

R. Xie, D. Battaglia, and X. Peng, “Colloidal InP nanocrystals as efficient emitters covering blue to near-infrared,” J. Am. Chem. Soc. 129(50), 15432–15433 (2007).
[CrossRef] [PubMed]

Petruska, M. A.

R. D. Schaller, M. A. Petruska, and V. I. Klimov, “Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals,” J. Phys. Chem. B 107(50), 13765–13768 (2003).
[CrossRef]

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

Phuong, L. Q.

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Reiss, P.

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Roßbach, R.

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

Ryou, J. H.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Sargent, E. H.

Schaller, R. D.

R. D. Schaller, M. A. Petruska, and V. I. Klimov, “Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals,” J. Phys. Chem. B 107(50), 13765–13768 (2003).
[CrossRef]

Schiff, S.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Schulz, W.-M.

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

Seguin, R.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Shum, P.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Smith, H. I.

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

Snee, P. T.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

Steckel, J. S.

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

Su, H.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Suematsu, Y.

M. Asada, Y. Miyamoto, and Y. Suematsu, “Gain and the threshold of three-dimensional quantum-box lasers,” IEEE J. Quantum Electron. 22(9), 1915–1921 (1986).
[CrossRef]

Sukhovatkin, V.

Sun, X. W.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Sundar, V.

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

Sundar, V. C.

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

Taliercio, T.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Tan, Z.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Thuy, P. T.

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Thuy, U. T. D.

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Walsh, M.

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

Wang, A.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Wang, A. Y.

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

Xie, R.

R. Xie, D. Battaglia, and X. Peng, “Colloidal InP nanocrystals as efficient emitters covering blue to near-infrared,” J. Am. Chem. Soc. 129(50), 15432–15433 (2007).
[CrossRef] [PubMed]

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

Xu, J.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

Xu, S.

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

Zhang, C.

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Zhang, F.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

Zhang, X. B.

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

Zhang, X. H.

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Zhu, T.

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

Zundel, M. K.

M. K. Zundel, “Self-assembled InP quantum dots for red LEDs on Si and injection lasers on GaAs,” J. Cryst. Growth 201-202(3), 1121–1125 (1999).
[CrossRef]

Appl. Phys. Lett. (7)

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, and V. I. Klimov, “From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids,” Appl. Phys. Lett. 81(7), 1303 (2002).
[CrossRef]

C. Zhang, F. Zhang, A. Cheng, B. Kimball, A. Y. Wang, and J. Xu, “Frequency upconverted lasing of nanocrystal quantum dots in microbeads,” Appl. Phys. Lett. 95(18), 183109 (2009).
[CrossRef]

U. T. D. Thuy, P. T. Thuy, N. Q. Liem, L. Li, and P. Reiss, “Comparative photoluminescence study of close-packed and colloidal InP/ZnS quantum dots,” Appl. Phys. Lett. 96(7), 073102 (2010).
[CrossRef]

Y. Liu, X. W. Sun, P. Shum, H. P. Li, J. Mi, W. Ji, and X. H. Zhang, “Low-threshold and narrow-linewidth lasing from dye-doped holographic polymer-dispersed liquid crystal transmission gratings,” Appl. Phys. Lett. 88(6), 061107 (2006).
[CrossRef]

Y. Arakawa, “Multidimensional quantum well laser and temperature dependence of its threshold current,” Appl. Phys. Lett. 40(11), 939 (1982).
[CrossRef]

H.-J. Eisler, V. C. Sundar, M. G. Bawendi, M. Walsh, H. I. Smith, and V. Klimov, “Color-selective semiconductor nanocrystal laser,” Appl. Phys. Lett. 80(24), 4614 (2002).
[CrossRef]

Y. Chan, J. S. Steckel, P. T. Snee, J.-M. Caruge, J. M. Hodgkiss, D. G. Nocera, and M. G. Bawendi, “Blue semiconductor nanocrystal laser,” Appl. Phys. Lett. 86(7), 073102 (2005).
[CrossRef]

Eur. Phys. J. Appl. Phys. (1)

R. Seguin, T. Guillet, T. Taliercio, P. Lefebvre, T. Bretagnon, X. B. Zhang, J. H. Ryou, and R. D. Dupuis, “Contribution of long lived metastable states to the PL of InP dots in indirect band-gap barrier layers,” Eur. Phys. J. Appl. Phys. 37(1), 15–18 (2007).
[CrossRef]

IEEE J. Quantum Electron. (1)

M. Asada, Y. Miyamoto, and Y. Suematsu, “Gain and the threshold of three-dimensional quantum-box lasers,” IEEE J. Quantum Electron. 22(9), 1915–1921 (1986).
[CrossRef]

J. Am. Chem. Soc. (2)

R. Xie, D. Battaglia, and X. Peng, “Colloidal InP nanocrystals as efficient emitters covering blue to near-infrared,” J. Am. Chem. Soc. 129(50), 15432–15433 (2007).
[CrossRef] [PubMed]

R. Xie, U. Kolb, J. Li, T. Basché, and A. Mews, “Synthesis and characterization of highly luminescent CdSe-core CdS/Zn0.5Cd0.5S/ZnS multishell nanocrystals,” J. Am. Chem. Soc. 127(20), 7480–7488 (2005).
[CrossRef] [PubMed]

J. Cryst. Growth (2)

W.-M. Schulz, M. Eichfelder, R. Roßbach, M. Jetter, and P. Michler, “InP/AlGaInP quantum dot laser emitting at 638nm,” J. Cryst. Growth 315(1), 123–126 (2011).
[CrossRef]

M. K. Zundel, “Self-assembled InP quantum dots for red LEDs on Si and injection lasers on GaAs,” J. Cryst. Growth 201-202(3), 1121–1125 (1999).
[CrossRef]

J. Phys. Chem. B (1)

R. D. Schaller, M. A. Petruska, and V. I. Klimov, “Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals,” J. Phys. Chem. B 107(50), 13765–13768 (2003).
[CrossRef]

J. Phys.: Conference Series (1)

P. T. Thuy, U. T. D. Thuy, T. T. K. Chi, L. Q. Phuong, N. Q. Liem, L. Li, and P. Reiss, “Time-resolved photoluminescence measurements of InP/ZnS quantum dots,” J. Phys.: Conference Series 187, 012014 (2009).
[CrossRef]

Opt. Commun. (1)

Y. Liu, “Improvement of the diffraction properties in holographic polymer dispersed liquid crystal bragg gratings,” Opt. Commun. 218(1-3), 27–32 (2003).
[CrossRef]

Opt. Lett. (1)

Phys. Rev. B (3)

M. Achermann, J. Hollingsworth, and V. Klimov, “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals,” Phys. Rev. B 68(24), 245302 (2003).
[CrossRef]

C. Zhang, J. Xu, T. Zhu, F. Zhang, Z. Tan, S. Schiff, H. Su, S. Gao, and A. Wang, “Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots,” Phys. Rev. B 80(3), 035333 (2009).
[CrossRef]

J.-M. Caruge, Y. Chan, V. Sundar, H. Eisler, and M. Bawendi, “Transient photoluminescence and simultaneous amplified spontaneous emission from multiexciton states in CdSe quantum dots,” Phys. Rev. B 70(8), 085316 (2004).
[CrossRef]

Science (1)

V. I. Klimov, A. A. Mikhailovsky, S. Xu, A. Malko, J. A. Hollingsworth, C. A. Leatherdale, H. Eisler, and M. G. Bawendi, “Optical gain and stimulated emission in nanocrystal quantum dots,” Science 290(5490), 314–317 (2000).
[CrossRef] [PubMed]

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Figures (4)

Fig. 1
Fig. 1

(a) Absorption and PL Characterization of InP/ZnS core/shell NQDs of different size and (b) low (left) and high (right) magnification transmission electron microscopic images of the red-emitting NQDs

Fig. 2
Fig. 2

(a) Emission spectra of InP/ZnS core/shell NQDs at different excitation fluence; (b) spontaneous emission and ASE from the NQDs emitting at green, red, and near-IR wavelengths.

Fig. 3
Fig. 3

Time-resolved PL traces with excitation fluence below (spontaneous emission) and above (ASE) the lasing threshold.

Fig. 4
Fig. 4

(a) Schematic diagram of the nanocrystal DFB laser structure containing InP/ZnS core-shell NQDs and an underlying HPDLC grating. The inset shows the SEM image of the grating; (b) emission spectrum of the nanocrystal lasing peaked at λ≈616nm. The inset shows the emission intensities of NQDs as functions of the excitation fluence energy.

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