Annotation
Absorption of radiation in the medium IR range by a periodic-profile metal surface has been investigated. The absorbed energy was measured by means of the opto-acoustic effect. Sharp and narrow absorption peaks were observed at light incidence angles corresponding to resonance excitation of surface electromagnetic waves by scattered radiation. A method of determining surface roughness and angular spectrum of laser radiation is proposed.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
A.A. Benditskii, A.A. Karabutov, I.A. Kudinov, V.T. Platonenko, M.A. Sogoyan, A.V. Chugunov
Department of General Physics and Wave Processes, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Department of General Physics and Wave Processes, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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