Issue
J. Phys. IV France
Volume 04, Number C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
Page(s) C7-19 - C7-22
DOI https://doi.org/10.1051/jp4:1994705
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique

J. Phys. IV France 04 (1994) C7-19-C7-22

DOI: 10.1051/jp4:1994705

Influence of the probe beam size on the photothermal reflectance signal

T. Velinov1, G. Burov1, K. Bransalov1, J.-P. Roger2 and A. Mansanares2

1  Sofia University, Department of Solid State Physics and Microelectronics, 5 blvd J. Bourchier, 1126 Sofia, Bulgaria
2  Laboratoire d'optique, ESPCI, 10 rue Vauquelin, 75005 Paris, France


Abstract
The influence of the probe beam size and shape on the photothermal reflectance signal is discussed. An analytical formula for the case of Gaussian power distribution is derived. The potentials of the photothermal microscope for local investigation of thermal parameters of solids and solid structures are outlined using computer simulation.



© EDP Sciences 1994