Light & Engineering 30 (6)
Volume 30
Date of publication 12/19/2022
Pages 55–59
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Experimental Evaluation of the Structure of Dynamic Diffraction Gratings in Acousto-Optic Devices L&E, Vol.30, No.6, 2022
Articles authors:
Sergey A. Titov, Vitold E. Pozhar, Vladimir A. Lomonov
Sergey A. Titov, Ph. D. in Technical Sciences, Associate Professor. In 1980, he graduated from the faculty of physics of the M.V. Lomonosov Moscow State University. At present, he is the senior research scientist of the laboratory of nanogradient optics, magnetic materials and structures of STC UI RAS. His research interests: acoustooptics, signal processing, non-destructive testing
Vitold E. Pozhar, Doctor of Phys.-Math. Sciences. He graduated from Moscow Institute of Physics and Technology in 1981. Now he is head of the Acousto-optic Information System Department of the STC UI RAS, Professor of the Bauman Moscow State Technical University and Moscow Engineering Physics Institute. His research interests are acoustooptics, spectrometry, differential, modulation, adaptive spectroscopy, hyper spectrometry, remote sensing, and spectral instrument engineering
Vladimir A. Lomonov, Ph. D. in Chemical Sciences. He graduated from the Quantum Electronic Materials sub-department of D. Mendeleev University of Chemical Technology of Russia in 1972. At present, he is the senior research scientist at Crystallography and Photonics Federal Research Facility of the Russian Academy of Sciences. His research interests: crystal growing
Abstract:
The method of studying of dynamic diffraction gratings formed in acousto-optic devices is presented. Using a receiving scanning acoustic microscope, acousto-optic modulators of the same shape made of quartz glass and crystalline quartz were studied. Grating shape blurring effects and appearing of spurious gratings due to wave re-reflection were observed. It is shown that the grating structure demonstrates high correspondence to the theoretical shape in quartz glass whereas differences associated with material anisotropy are visible in crystalline quartz. The connection between the structure of dynamic gratings and characteristics of acousto-optic devices is discussed.
References:
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