Amplified spontaneous emission in semiconductor-nanocrystal/ synthetic-opal composites: Optical-gain enhancement via a photonic crystal pseudogap

Garry R. Maskaly; Melissa A. Petruska; Jagjit Nanda; Ilya V. Bezel; Richard D. Schaller; Han Htoon; Jeffrey M. Pietryga; Victor I. Klimov

doi:10.1002/adma.200500875

Amplified spontaneous emission in semiconductor-nanocrystal/ synthetic-opal composites: Optical-gain enhancement via a photonic crystal pseudogap

Garry R. Maskaly, Melissa A. Petruska, Jagjit Nanda, Ilya V. Bezel, Richard D. Schaller, Han Htoon, Jeffrey M. Pietryga, Victor I. Klimov

Research output: Contribution to journal › Article

62 Citations (Scopus)

Abstract

The effects of the L-point gap on the nanocrystals (NC) spontaneous and stimulated emissions in a synthetic opal infiltrated with a CDSe sol-gel/NC composite were investigated. It was found that despite the low loading of active material, amplified spontaneous emission (ASE) was clearly evident in the infiltrated samples. The sol-gel/NC/PC samples exhibited a reduced ASE threshold ranging from 40 to over 60%, despite a significant decrease in NC volume loading. The results show that in all cases. the ASE lines shift toward the PC L-point gap edges.

Original language	English
Pages (from-to)	343-347
Number of pages	5
Journal	Advanced Materials
Volume	18
Issue number	3
DOIs	https://doi.org/10.1002/adma.200500875
Publication status	Published - Feb 3 2006

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Maskaly, G. R., Petruska, M. A., Nanda, J., Bezel, I. V., Schaller, R. D., Htoon, H., Pietryga, J. M., & Klimov, V. I. (2006). Amplified spontaneous emission in semiconductor-nanocrystal/ synthetic-opal composites: Optical-gain enhancement via a photonic crystal pseudogap. Advanced Materials, 18(3), 343-347. https://doi.org/10.1002/adma.200500875

Amplified spontaneous emission in semiconductor-nanocrystal/ synthetic-opal composites : Optical-gain enhancement via a photonic crystal pseudogap. / Maskaly, Garry R.; Petruska, Melissa A.; Nanda, Jagjit; Bezel, Ilya V.; Schaller, Richard D.; Htoon, Han; Pietryga, Jeffrey M.; Klimov, Victor I.

In: Advanced Materials, Vol. 18, No. 3, 03.02.2006, p. 343-347.

Research output: Contribution to journal › Article

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abstract = "The effects of the L-point gap on the nanocrystals (NC) spontaneous and stimulated emissions in a synthetic opal infiltrated with a CDSe sol-gel/NC composite were investigated. It was found that despite the low loading of active material, amplified spontaneous emission (ASE) was clearly evident in the infiltrated samples. The sol-gel/NC/PC samples exhibited a reduced ASE threshold ranging from 40 to over 60%, despite a significant decrease in NC volume loading. The results show that in all cases. the ASE lines shift toward the PC L-point gap edges.",

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