Raman spectroscopy of Si nanoparticles embedded in silica films I. Stenger, B. Gallas, B. Jusserand, S. Chenot, S. Fisson and J. Rivory Eur. Phys. J. Appl. Phys., 44 1 (2008) 51-57 Published online: 06 August 2008 DOI: 10.1051/epjap:2008140