Acoustic and acousto-optic properties of Ga10Ge15Te75 glass

Khorkin, V.S.; Kostyleva, E.I.; Mantsevich, S.N.; Velmuzhov, A.P.; Tyurina, E.A.; Sukhanov, M.V.; Shiryaev, V.S.

Авторы: Khorkin V.S., Kostyleva E.I., Mantsevich S.N., Velmuzhov A.P., Tyurina E.A., Sukhanov M.V., Shiryaev V.S.
Журнал: Journal of Non-Crystalline Solids
Том: 648
Год издания: 2025
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 123299-1
Последняя страница: 123299-7
DOI: 10.1016/j.jnoncrysol.2024.123299
Аннотация: The acoustic and acousto-optic (AO) properties of the Ga10Ge15Te75 glass, which is promising for creation of AO devices operating with the near and middle infrared optical radiation, are studied. In this paper, the experimental results for the longitudinal and shear acoustic waves phase velocities and the AO figure of merit (M2) in case of isotropic diffraction by these waves are presented. All measurements are carried out for the 3.39 µm optical wavelength. The obtained M2 magnitudes turned out to be close to 1000·10–15s3/kg that significantly exceeds the typical values observed in germanium (Ge) crystal – the basic material for middle infrared AO devices fabrication. The experimentally determined longitudinal acoustic wave attenuation coefficient for 100 MHz ultrasound frequency turns out to be 1.32 ± 0.05 cm-1. Finally, the acoustic and AO properties of telluride based glasses with the close chemical composition, namely Ga10Ge15Te75, Si25Te75 and Ge25Se15Te60 glasses, are compared.
Добавил в систему: Хоркин Владимир Сергеевич

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