PHYSICS

Thermooptical sounds excitation in gyrotropic two-layers under opposite interaction of electromagnetic waves

G. S. Mityurich^a, V. V. Sviridova^b, A. N. Serdyukov<sup>b

a</sup> Belarusian Trade and Economics University of Consumer Cooperatives, Gomel
^b F. Scorina Gomel State University, Gomel

Abstract: Photoacoustic transformation in the gyrotropic two-layer medium under the tunnel electromagnetic interference has been studied in the work. The effect of full suppression of photoacoustic signal amplitude depending on the intensiveness of oppositeinteractive waves, phase difference and modulation frequency has been revealed. The method of the amplitude-phase characteristics control of the photoacoustic signal has been proposed.

Keywords: photoacoustic effect, tunnel electromagnetic interference, gyrotropy, circularly dichroism, heat conduction equation, photoacoustic signal amplitude, photoacoustic cell.

UDC: УДК 535.16:534.341

Received: 24.11.2011