Two-photon-pumped lasing from colloidal nanocrystal quantum dots

Chunfeng Zhang; Fan Zhang; Ting Zhu; An Cheng; Jian Xu; Qi Zhang; Suzanne E. Mohney; Ron H. Henderson; Y. Andrew Wang

doi:10.1364/OL.33.002437

Two-photon-pumped lasing from colloidal nanocrystal quantum dots

Chunfeng Zhang
, Fan Zhang
, Ting Zhu
, An Cheng
, Jian Xu
, Qi Zhang
, Suzanne E. Mohney
, Ron H. Henderson
, Y. Andrew Wang

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Upconverted lasing in the nonlinear, two-photon absorption regime has been demonstrated, for the first time to the best of our knowledge in colloidal nanocrystal quantum dots (NQDs). Upon pulse excitation at sub-bandgap photon energies the radiative recombination of excitons in close-packed CdSe/CdS/ZnS core-shell NQDs was found to be sufficiently fast to compete with the intrinsic nonradiative Auger recombination, as confirmed by the presence of a fast decay (∼7 ps) in the time-resolved photoluminescence.

Original language	English (US)
Pages (from-to)	2437-2439
Number of pages	3
Journal	Optics Letters
Volume	33
Issue number	21
DOIs	https://doi.org/10.1364/OL.33.002437
State	Published - Nov 1 2008

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.33.002437

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abstract = "Upconverted lasing in the nonlinear, two-photon absorption regime has been demonstrated, for the first time to the best of our knowledge in colloidal nanocrystal quantum dots (NQDs). Upon pulse excitation at sub-bandgap photon energies the radiative recombination of excitons in close-packed CdSe/CdS/ZnS core-shell NQDs was found to be sufficiently fast to compete with the intrinsic nonradiative Auger recombination, as confirmed by the presence of a fast decay (∼7 ps) in the time-resolved photoluminescence.",

author = "Chunfeng Zhang and Fan Zhang and Ting Zhu and An Cheng and Jian Xu and Qi Zhang and Mohney, \{Suzanne E.\} and Henderson, \{Ron H.\} and Wang, \{Y. Andrew\}",

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doi = "10.1364/OL.33.002437",

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T1 - Two-photon-pumped lasing from colloidal nanocrystal quantum dots

AU - Zhang, Chunfeng

AU - Zhang, Fan

AU - Zhu, Ting

AU - Cheng, An

AU - Xu, Jian

AU - Zhang, Qi

AU - Mohney, Suzanne E.

AU - Henderson, Ron H.

AU - Wang, Y. Andrew

PY - 2008/11/1

Y1 - 2008/11/1

N2 - Upconverted lasing in the nonlinear, two-photon absorption regime has been demonstrated, for the first time to the best of our knowledge in colloidal nanocrystal quantum dots (NQDs). Upon pulse excitation at sub-bandgap photon energies the radiative recombination of excitons in close-packed CdSe/CdS/ZnS core-shell NQDs was found to be sufficiently fast to compete with the intrinsic nonradiative Auger recombination, as confirmed by the presence of a fast decay (∼7 ps) in the time-resolved photoluminescence.

AB - Upconverted lasing in the nonlinear, two-photon absorption regime has been demonstrated, for the first time to the best of our knowledge in colloidal nanocrystal quantum dots (NQDs). Upon pulse excitation at sub-bandgap photon energies the radiative recombination of excitons in close-packed CdSe/CdS/ZnS core-shell NQDs was found to be sufficiently fast to compete with the intrinsic nonradiative Auger recombination, as confirmed by the presence of a fast decay (∼7 ps) in the time-resolved photoluminescence.

UR - https://www.scopus.com/pages/publications/55849083067

UR - https://www.scopus.com/pages/publications/55849083067#tab=citedBy

U2 - 10.1364/OL.33.002437

DO - 10.1364/OL.33.002437

M3 - Article

C2 - 18978879

AN - SCOPUS:55849083067

SN - 0146-9592

VL - 33

SP - 2437

EP - 2439

JO - Optics Letters

JF - Optics Letters

IS - 21

ER -

Two-photon-pumped lasing from colloidal nanocrystal quantum dots

Abstract

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