For a system where a metal film deposited on a quartz substrate contacts an immersion liquid, a direct optoacoustic problem is considered. The effect of film thickness on the efficiency of optoacoustic conversion is investigated. Chromium films of different thickness and two immersion liquids, acetone and ethanol, have been used in the experiment. The results of measurement and theoretical modeling suggest that a transfer function of optoacoustic conversion can be used to determine the thickness of submicron metal coatings and study their thermophysical parameters.
International Educational and Scientific Laser Center, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Science News of the Faculty of Physics, Lomonosov Moscow State University
This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.