Spatially resolved photomodulated microwave absorption and thermal wave images of boron doped silicon O. von Geisau, R. Meckenstock, F. Schreiber, J. Pelzl, U. Seidel and H.G. Walther J. Phys. IV France, 04 C7 (1994) C7-133-C7-136 DOI: 10.1051/jp4:1994732