TY - JOUR
T1 - Amplified spontaneous emission in semiconductor-nanocrystal/ synthetic-opal composites
T2 - Optical-gain enhancement via a photonic crystal pseudogap
AU - Maskaly, Garry R.
AU - Petruska, Melissa A.
AU - Nanda, Jagjit
AU - Bezel, Ilya V.
AU - Schaller, Richard D.
AU - Htoon, Han
AU - Pietryga, Jeffrey M.
AU - Klimov, Victor I.
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.
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U2 - 10.1002/adma.200500875
DO - 10.1002/adma.200500875
M3 - Article
AN - SCOPUS:32244448974
VL - 18
SP - 343
EP - 347
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 3
ER -