EFFECT OF OPTICAL ACTIVITY ON THE PERFORMANCE OF BRAGG DIFFRACTION OF LIGHT IN ACOUSTIC WAVES IN BISMUTH GERMANATE CRYSTALS
The influence of optical activity on the efficiency of Bragg light diffraction in transverse acoustic waves in bismuth germanate crystals has been investigated, taking into account the photoelastic constants and the M₂ acousto-optic figure of merit values, as well as the piezoelectric and electro-optic effects. The propagation directions of acoustic waves in the (110) plane, where the M₂ coefficient attains its maximum value, have been determined. The identified characteristics of Bragg light diffraction in transverse acoustic waves will be beneficial for the development of acousto-optic devices.
1. Шаскольская М.П (ред.) Акустические кристаллы. Справочник. М., Наука, 1982, 632с.
2. Venturini E. L., Spencer E. G., Ballman A. A. Elasto‐Optic Properties of Bi12GeO20, Bi12SiO20, and SrxBa1−xNb2O6. J. Appl. Physics. 1969, 40(4): 1622–1624.
3. Дьелесан Э.Д., Руайе Д. Упругие волны в твердых телах. Применение для обработки сигналов. - М., Наука, 1982, 342 с.
4. Ganeev R.A., Ryasnyansky A.I., Tugushev R.I., Kodirov M.K., Akhmedzhanov F.R., Usmanov T. Study of nonlinear-optical characteristics of photorefractive BSO and BGO crystals. Quantum Electronics. 2004, 34(2): 156-160.
5. 5.Shen C., Zhang H., Zhang Y., Xu H., Y H., Wang, J., Zhang S. Orientation and Temperature Dependence of Piezoelectric Properties for Sillenite-Type Bi12TiO20 and Bi12SiO20 Single Crystals. Crystals. 2014, 4(2): 141-151.
6. Dixon R.W. Photoelastic properties of selected materials and their relevence for applications to acoustic light modulators and scanners. J. Appl, Phys. 1967, 38: 5149-5152.
7. Dixon R. W., Cohen M. G. A new technique for measuring magnitudes of photoelastic tensors and its application to lithium niobate. Appl. Phys. Lett. 1966, No. 8: 205-207.
8. Балакший В.И., Зотов Е.И., Парыгин В.Н. Анизотропная дифракция света в среде с искусственной анизотропией. Квантовая электроника. 1976, 3(10):2197–2204.
9. Akhmedzhanov F.R, Mirzaev S.Z, Saidvaliev U.A. Parameters of elastic anisotropy in bismuth silicate crystals. Ferroelectrics. 2020, 556(1): 23–28.
10. Amanova M.A, Shepelevich V.V, Makarevich V.V, Navnyk V.N. Influence of Inverse Piezoelectric Effect, Photoelasticity, and Optical Activity on the Diffraction Efficiency of Transmissing Holograms in Photorefractive Crystal Bi12SiO20. Journ. of Appl. Spectroscopy. 2020, 87(2): 349–356.
11. Кизель В.А., Бурков В.И. Гиротропия кристаллов. М., Наука, 1980, 281 c.
12. Belyi V.N., Kulak G.V. Diffraction of light on ultrasound in gyrotropic cubic crystals in Bragg conditions. Journ. of Appl. Spectroscopy. 1991, 54(5): 484–488.
13. Akhmedzhanov F.R. Dispersion of acoustical activity and anisotropy of acoustical attenuation in bismuth silicate crystals. Proc. Mtgs. Acoust. 2018, 34(S16-4) 045046: 1-6.
14. Akhmedzhanov F.R., Elboyeva M.I. Bragg Light Diffraction by Piezoactive
15. Acoustic Waves in Bismuth Germanate and Bismuth Silicate Crystals. RENSIT. 2025, Vol. 17, No 1, P. 77-82.
Copyright (c) 2025 ACTA NUUz
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
.jpg)
1.png)
