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Type: 
Journal
Description: 
The observation of stimulated Raman scattering in amorphous silicon nanoparticles embedded in Si-rich nitride/silicon superlattice structures (SRN/Si-SLs) is reported. Using a 1427 nm continuous-wavelength pump laser, an amplification of Stokes signal up to 0.9 dB/cm at 1540.6 nm and a significant reduction in threshold power of about 40% with respect to silicon are experimentally demonstrated. Our results indicate that amorphous silicon nanoparticles are a great promise for Si-based Raman lasers.
Publisher: 
Hindawi
Publication date: 
1 Jan 2012
Authors: 

MA Ferrara, I Rendina, SN Basu, L Dal Negro, L Sirleto

Biblio References: 
Volume: 2012
Origin: 
International Journal of Photoenergy