Optical penetration depth determination in a graphite-epoxy laminate by photoacoustic F.T.I.R. spectroscopy M. Dubois, F. Enguehard, L. Bertrand, M. Choquet and J.-P. Monchalin J. Phys. IV France, 04 C7 (1994) C7-377-C7-380 DOI: 10.1051/jp4:1994788