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

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ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Cite this

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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10.1002/adma.200500875