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This article is cited in 28 scientific papers (total in 28 papers)
Diffraction of radiation
Spatial and spectral image distortions caused by diffraction of an ordinary polarised light beam by an ultrasonic wave
A. S. Machikhin, V. È. Pozhar Central Design Bureau for Unique Instrumentation, Russian Academy of Sciences, Moscow
Abstract:
We consider the problem of determining the spatial and spectral image distortions arising from anisotropic diffraction by ultrasonic waves in crystals with ordinary polarised light (o → e). By neglecting the small-birefringence approximation, we obtain analytical solutions that describe the dependence of the diffraction angles and wave mismatch on the acousto-optic (AO) interaction geometry and crystal parameters. The formulas derived allow one to calculate and analyse the magnitude of diffraction-induced spatial and spectral image distortions and to identify the main types of distortions: chromatic compression and trapezoidal deformation. A comparison of the values of these distortions in the diffraction of ordinary and extraordinary polarised light shows that they are almost equal in magnitude and opposite in signs, so that consistent diffraction (o → e → o or e → o → e) in two identical AO cells rotated through 180° in the plane of diffraction can compensate for these distortions.
Keywords:
acousto-optic filter, distortions, acousto-optic diffraction.
Received: 18.01.2014 Revised: 21.04.2014
Citation:
A. S. Machikhin, V. È. Pozhar, “Spatial and spectral image distortions caused by diffraction of an ordinary polarised light beam by an ultrasonic wave”, Kvantovaya Elektronika, 45:2 (2015), 161–165 [Quantum Electron., 45:2 (2015), 161–165]
Linking options:
https://www.mathnet.ru/eng/qe16107 https://www.mathnet.ru/eng/qe/v45/i2/p161
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Abstract page: | 332 | Full-text PDF : | 106 | References: | 31 | First page: | 16 |
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