From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids

A. V. Malko; A. A. Mikhailovsky; M. A. Petruska; J. A. Hollingsworth; H. Htoon; M. G. Bawendi; Victor I Klimov

doi:10.1063/1.1497708

From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids

A. V. Malko, A. A. Mikhailovsky, M. A. Petruska, J. A. Hollingsworth, H. Htoon, M. G. Bawendi, Victor I Klimov

Los Alamos National Laboratory

Research output: Contribution to journal › Article

221 Citations (Scopus)

Abstract

We study different emission regimes in close-packed films of chemically synthesized CdSe nanoparticles [nanocrystal quantum dots (NQDs)]. We observe that the NQD photoluminescence is dominated by excitons and biexcitons, respectively, before and after the threshold for stimulated emission. Furthermore, we demonstrate the regime of microring lasing into sharp, whispering-gallery modes using NQD solids incorporated into microcapillary tubes. This result indicates a feasibility of miniature, solid-state laser devices based on chemically synthesized NQDs.

Original language	English
Pages (from-to)	1303-1305
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	7
DOIs	https://doi.org/10.1063/1.1497708
Publication status	Published - Aug 12 2002

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ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Cite this

Malko, A. V., Mikhailovsky, A. A., Petruska, M. A., Hollingsworth, J. A., Htoon, H., Bawendi, M. G., & Klimov, V. I. (2002). From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids. Applied Physics Letters, 81(7), 1303-1305. https://doi.org/10.1063/1.1497708

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abstract = "We study different emission regimes in close-packed films of chemically synthesized CdSe nanoparticles [nanocrystal quantum dots (NQDs)]. We observe that the NQD photoluminescence is dominated by excitons and biexcitons, respectively, before and after the threshold for stimulated emission. Furthermore, we demonstrate the regime of microring lasing into sharp, whispering-gallery modes using NQD solids incorporated into microcapillary tubes. This result indicates a feasibility of miniature, solid-state laser devices based on chemically synthesized NQDs.",

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AU - Htoon, H.

AU - Bawendi, M. G.

AU - Klimov, Victor I

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AB - We study different emission regimes in close-packed films of chemically synthesized CdSe nanoparticles [nanocrystal quantum dots (NQDs)]. We observe that the NQD photoluminescence is dominated by excitons and biexcitons, respectively, before and after the threshold for stimulated emission. Furthermore, we demonstrate the regime of microring lasing into sharp, whispering-gallery modes using NQD solids incorporated into microcapillary tubes. This result indicates a feasibility of miniature, solid-state laser devices based on chemically synthesized NQDs.

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10.1063/1.1497708