Thermooptical excitation in Hg1-xCdxTe alloys subjecting to ultrasonic influence

Rada K. Savkina; Feodor F. Sizov; Alexsej B. Smirnov

doi:10.1117/12.623060

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29 September 2005 Thermooptical excitation in Hg_1-xCd_xTe alloys subjecting to ultrasonic influence

Rada K. Savkina, Feodor F. Sizov, Alexsej B. Smirnov

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Proceedings Volume 5957, Infrared Photoelectronics; 59571I (2005) https://doi.org/10.1117/12.623060
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Ultrasonically stimulated effects in Hg_1-xCd_xTe alloys were studied. Dependencies of Hall coefficient and conductivity of n- and p-MCT samples from temperature ( T=77÷300° K ) and magnetic field ( B=0÷0.7 T ) were investigated during ultrasonic influence and after ultrasonic treatment with frequency f_US = 5÷8 MHz and intensity W_US ⪝ 0.5•10⁴ W/m². It was shown that the action of the acoustic wave excited in Hg_1-xCd_xTe crystal by piezo-transducer results in an essential change of the carrier concentration up to change of the conduction type. The possible mechanism of sonic-stimulated effects was discussed in the frame of the intensive sonic-dislocation interaction model. The possibility of the thermooptical excitation of solid with activation of internal sources of the infrared radiation as a consequence of the acoustic wave energy absorption was determined.

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Rada K. Savkina, Feodor F. Sizov, and Alexsej B. Smirnov "Thermooptical excitation in Hg_1-xCd_xTe alloys subjecting to ultrasonic influence", Proc. SPIE 5957, Infrared Photoelectronics, 59571I (29 September 2005); https://doi.org/10.1117/12.623060

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