COATINGS CHARACTERIZATIONS BY THE MIRAGE EFFECT AND THE PHOTOTHERMAL MICROSCOPE J.P. ROGER, D. FOURNIER, A.C. BOCCARA et F. LEPOUTRE J. Phys. Colloques, 50 C5 (1989) C5-295-C5-310 DOI: 10.1051/jphyscol:1989537