μ-Raman investigations of plasma hydrogenated silicon R. Job, A. G. Ulyashin, W. R. Fahrner, M.-F. Beaufort and J.-F. Barbot Eur. Phys. J. AP, 23 1 (2003) 25-32 Published online: 25 February 2003 DOI: 10.1051/epjap:2003013