Publications by authors named "V S Khorkin"

Article Synopsis
  • The study presents an experimental examination of frequency-shifted feedback (FSF) laser systems, which produce a sequence of short pulses that result in an optical frequency comb (OFC) in the mode-locked regime.
  • It explores the tunable acousto-optic (AO) dual and quad-comb frequency spacing downconversion, using a single frequency-shifting loop and an AO tunable filter with multiple radio frequency inputs.
  • The results show that dual-combs and quad-combs can be generated with tunable frequency spacings; the quad-combs exhibited over 5000 spectral lines with frequency spacings reduced from several MHz to tens of kHz.
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We investigated the acoustic and acousto-optic parameters of cubic crystal KRS-5, which can be used in acousto-optic devices operating with optical radiation from visible to far infrared regions. The results of acoustic and acousto-optic property calculations are presented. Also, we present a possibility of obtaining optical birefringence in cubic material when external static pressure is applied to the KRS-5 crystal.

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Peculiar cases of acoustic wave propagation and reflection may be observed in strongly anisotropic acousto-optical crystals. A tellurium dioxide crystal serves as a prime example of such media, since it possesses record indexes of acoustic anisotropy. We studied one of the unusual scenarios of acoustic incidence and reflection from a free crystal-vacuum boundary in paratellurite.

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Ultrasound wave reflection from one of the crystal faces is the convenient way to arouse the acoustic beam with a desired propagation direction in acousto-optic cells with collinear and quasi-collinear interaction geometries. The reflection process effects on the ultrasound field amplitude and phase structure. The method to simulate the reflected finite ultrasound beam structure in the case of acoustically anisotropic media is presented in this paper.

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