Emission of nanoparticles during ultrashort laser irradiation of silicon targets S. Amoruso, R. Bruzzese, N. Spinelli, R. Velotta, M. Vitiello and X. Wang Europhys. Lett., 67 3 (2004) 404-410 Published online: 01 July 2004 DOI: 10.1209/epl/i2004-10080-2