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Kvantovaya Elektronika, 2010 Volume 40, Number 10, Pages 928–932 (Mi qe14392)

Laser applications and other aspects of quantum electronics

Measurement of angular parameters of divergent optical radiation by light diffraction on sound

V. M. Kotov, S. V. Averin, G. N. Shkerdin

Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences

Abstract: A method is proposed to measure the scattering angle of optical radiation, the method employing two Bragg diffraction processes in which divergent optical radiation propagates close to the optical axis of a uniaxial crystal, while the acoustic wave — orthogonally to this axis. The method does not require additional angular tuning of the acousto-optic cell. We suggest using a mask to measure the light divergence that is larger than the angle of Bragg scattering. The method can be used to measure the size of the polished glass plate inhomogeneities.

PACS: 78.20.Hp, 42.25.Fx, 42.60.Jf

Received: 07.07.2010
Revised: 30.08.2010


 English version:
Quantum Electronics, 2010, 40:10, 928–932

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© Steklov Math. Inst. of RAS, 2025