Analysis of pulsed photoacoustic signal: theoretical study of the diffusion of chromophores in the human skin N. Benamar, F. Lahjomri, E. Chatri and E. M. Achour Eur. Phys. J. AP, 19 1 (2002) 63-68 Published online: 28 June 2002 DOI: 10.1051/epjap:2002049