Thermal Imaging and Conoscopic Studies of Working Acousto-optical Devices on the Base of Paratellurite

In the present work we performed a study of the temperature field distribution in acousto-optic elements using infrared thermal vision instruments and compared the results with those obtained by conoscopic observations made by means of custom-built laser interferometer. The latter technique is espec...

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Bibliographic Details
Published in:International journal of thermophysics 2016, Vol.37 (1), p.1-9, Article 6
Main Authors: Tretiakov, Sergey, Kolesnikov, Alexander, Kaplunov, Ivan, Grechishkin, Rostislav, Yushkov, Konstantin, Shmeleva, Ekaterina
Format: Article
Language:English
Subjects:
Acousto-optics
Axial stress
Classical Mechanics
Condensed Matter Physics
Industrial Chemistry/Chemical Engineering
Infrared instruments
Interferometers
Lasers
Physical Chemistry
Physics
Physics and Astronomy
Refraction
Thermal imaging
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Summary:In the present work we performed a study of the temperature field distribution in acousto-optic elements using infrared thermal vision instruments and compared the results with those obtained by conoscopic observations made by means of custom-built laser interferometer. The latter technique is especially suited for the sensitive detection of optical anomalies arising due to temperature-induced variations of ordinary and extraordinary refraction indices inside the material. Collation of the thermal and optical patterns provided a possibility of attributing the occurrence of anomalous biaxiality to the effect of thermal stresses developing in the acousto-optic elements during their operation.
ISSN:0195-928X
1572-9567
DOI:10.1007/s10765-015-2017-x