Lasing from colloidal InP/ZnS quantum dots

Shuai Gao; Chunfeng Zhang; Yanjun Liu; Huaipeng Su; Lai Wei; Tony Huang; Nicholas Dellas; Shuzhen Shang; Suzanne E. Mohney; Jingkang Wang; Jian Xu

doi:10.1364/OE.19.005528

Lasing from colloidal InP/ZnS quantum dots

Shuai Gao, Chunfeng Zhang, Yanjun Liu, Huaipeng Su, Lai Wei, Tony Huang, Nicholas Dellas, Shuzhen Shang, Suzanne E. Mohney, Jingkang Wang, Jian Xu

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

49 Scopus citations

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 polymerdispersed liquid crystal gratings, leading to the very first demonstration of an optically-pumped, nanocrystal laser based on InP/ZnS core-shell NQDs.

Original language	English (US)
Pages (from-to)	5528-5535
Number of pages	8
Journal	Optics Express
Volume	19
Issue number	6
DOIs	https://doi.org/10.1364/OE.19.005528
State	Published - Mar 14 2011

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.19.005528

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title = "Lasing from colloidal InP/ZnS quantum dots",

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 polymerdispersed liquid crystal gratings, leading to the very first demonstration of an optically-pumped, nanocrystal laser based on InP/ZnS core-shell NQDs.",

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AU - Gao, Shuai

AU - Zhang, Chunfeng

AU - Liu, Yanjun

AU - Su, Huaipeng

AU - Wei, Lai

AU - Huang, Tony

AU - Dellas, Nicholas

AU - Shang, Shuzhen

AU - Mohney, Suzanne E.

AU - Wang, Jingkang

AU - Xu, Jian

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Y1 - 2011/3/14

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Lasing from colloidal InP/ZnS quantum dots

Abstract

All Science Journal Classification (ASJC) codes

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