Light Modulator on the Basis of Magneto-Optical Crystal in a Bimorphic Structure Operating in the Magneto-Mechanical Vibration Mode

I. V. Linchevskyi; O. N. Petrischev

doi:10.15407/ujpe59.10.0972

Light Modulator on the Basis of Magneto-Optical Crystal in a Bimorphic Structure Operating in the Magneto-Mechanical Vibration Mode

Authors

I. V. Linchevskyi National Technical University of Ukraine “Kyiv Polytechnical Institute”
O. N. Petrischev National Technical University of Ukraine “Kyiv Polytechnical Institute”

DOI:

https://doi.org/10.15407/ujpe59.10.0972

Keywords:

Faraday effect, magneto-optical crystal, bimorphic element

Abstract

A model of light modulator based on a bimorphic element consisting of a magneto-optical crystal layer on a magnetically passive substrate has been proposed. An equation describing magneto-mechanical vibrations in a rectangular bimorphic element with asymmetric thickness is derived, and an algorithm of its solution in the case of a specimen with free edges is proposed. The modulator is shown to be characterized by a two-dimensional distribution function for the rotation angle of the polarization plane in a light-beam cross-section. Calculations for bismuth-substituted yttrium ferrite garnet on a gadolinium-gallium substrate showed that the rotation angle of the light-beam polarization plane owing to the Faraday effect can reach 3∘ for the fundamental mode of bimorphic element vibrations.

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Published

2018-10-25

How to Cite

Linchevskyi, I. V., & Petrischev, O. N. (2018). Light Modulator on the Basis of Magneto-Optical Crystal in a Bimorphic Structure Operating in the Magneto-Mechanical Vibration Mode. Ukrainian Journal of Physics, 59(10), 972. https://doi.org/10.15407/ujpe59.10.0972

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Issue

Vol. 59 No. 10 (2014)

Section

Optics, lasers, and quantum electronics

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