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29 September 2005 Thermooptical excitation in Hg1-xCdxTe alloys subjecting to ultrasonic influence
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Abstract
Ultrasonically stimulated effects in Hg1-xCdxTe 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 fUS = 5÷8 MHz and intensity WUS ⪝ 0.5•104 W/m2. It was shown that the action of the acoustic wave excited in Hg1-xCdxTe 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 Hg1-xCdxTe 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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