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

Garry Russell Maskaly; Melissa A. Petruska; Jagjit Nanda; Ilya V. Bezel; Richard D. Schaller; Han Htoon; Jeffrey Michael Pietryga; Victor Ivanovich Klimov; Jagjit Nanda

doi:10.1002/adma.200500875

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

Garry Russell Maskaly
, Melissa A. Petruska
, Jagjit Nanda
, Ilya V. Bezel
, Richard D. Schaller
, Han Htoon
, Jeffrey Michael Pietryga
, Victor Ivanovich Klimov
, Jagjit Nanda

Los Alamos National Laboratory

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

75 Scopus citations

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
State	Published - Feb 3 2006

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@article{71758ee540da415d873d0a7f43cd08af,

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

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.",

author = "Maskaly, \{Garry Russell\} and Petruska, \{Melissa A.\} and Jagjit Nanda and Bezel, \{Ilya V.\} and Schaller, \{Richard D.\} and Han Htoon and Pietryga, \{Jeffrey Michael\} and Klimov, \{Victor Ivanovich\} and Jagjit Nanda",

year = "2006",

month = feb,

day = "3",

doi = "10.1002/adma.200500875",

language = "English",

volume = "18",

pages = "343--347",

journal = "Advanced Materials",

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T1 - Amplified spontaneous emission in semiconductor-nanocrystal/ synthetic-opal composites

T2 - Optical-gain enhancement via a photonic crystal pseudogap

AU - Maskaly, Garry Russell

AU - Petruska, Melissa A.

AU - Nanda, Jagjit

AU - Bezel, Ilya V.

AU - Schaller, Richard D.

AU - Htoon, Han

AU - Pietryga, Jeffrey Michael

AU - Klimov, Victor Ivanovich

AU - Nanda, Jagjit

PY - 2006/2/3

Y1 - 2006/2/3

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/32244448974

U2 - 10.1002/adma.200500875

DO - 10.1002/adma.200500875

M3 - Article

SN - 0935-9648

VL - 18

SP - 343

EP - 347

JO - Advanced Materials

JF - Advanced Materials

IS - 3

ER -

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

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