TITLE

Observation of stimulated Raman scattering in silicon nanocomposites

AUTHOR(S)
Sirleto, L.; Ferrara, M. A.; Nicotra, G.; Spinella, C.; Rendina, I.
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p221106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper, we report on the observation of stimulated Raman scattering in silicon nanocomposites, consisting of silicon nanoparticles dispersed in SiO2 matrix prepared by sol-gel method. Using a 1427 nm cw pump laser, amplification of Stokes signal, at 1542.2 nm, up to 1.4 dB/cm is demonstrated. A preliminary valuation of approximately a fivefold enhancement of the gain coefficient in Raman amplifier based on silicon nanocomposites with respect to silicon and a significant reduction of threshold power are also reported. These results have a potential interest for silicon-based Raman lasers.
ACCESSION #
41139461

 

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