Triple Bragg Diffraction of Bessel Light Beams by Ultrasound in Uniaxial Crystals

Autor:	O. V. Shakin, G. V. Kulak, P. I. Ropot, S. V. Kulakov
Rok vydání:	2021
Předmět:	Condensed Matter::Quantum Gases Diffraction Materials science Uniaxial crystal business.industry Physics::Optics Bragg's law Condensed Matter Physics symbols.namesake Light intensity Optics symbols Light beam Crystal optics Synchronism business Spectroscopy Bessel function
Zdroj:	Journal of Applied Spectroscopy. 88:610-614
ISSN:	1573-8647 0021-9037
DOI:	10.1007/s10812-021-01216-1
Popis:	Noncollinear triple acousto-optic diffraction of Bessel light beams by ultrasound in uniaxial crystals is investigated. An expression for the complex vector amplitude of a wave diffracted under exact Bragg synchronism conditions is obtained in vector-matrix form. The diffracted light beams display triple Bragg diffraction with different efficiencies when a Bessel light beam propagates at a small angle to the crystal optical axis. Diffraction where the diffracted light beams have the same intensity is possible if the Bragg synchronism conditions are exactly fulfilled. This diffraction feature is not observed without Bragg synchronism. The light intensity in the third diffraction order is significantly reduced (down to zero) with large frequency detuning of the Bragg synchronism.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::45dcd9b33abc4066590b3a19a3e3fcfe https://doi.org/10.1007/s10812-021-01216-1 Zobrazit plný text záznamu Plný text ve formátu PDF