Bleustein-Gulyaev wave propagation characteristics in KNbO3 and PKN crystals

M. Yu. Dvoesherstov; V. I. Cherednick; A. P. Chirimanov; S. G. Petrov

doi:10.1117/12.364556

24 September 1999 Bleustein-Gulyaev wave propagation characteristics in KNbO₃ and PKN crystals

M. Yu. Dvoesherstov, V. I. Cherednick, A. P. Chirimanov, S. G. Petrov

Proceedings Volume 3900, 3rd International Conference on Optical Information Processing; (1999) https://doi.org/10.1117/12.364556
Event: Third International Conference on Optical Information Processing, 1999, Moscow, Russian Federation

Abstract

In this paper, theoretical investigation is shown for cuts and propagation directions on KNbO₃, PKN substrates where the Bleustein-Gulyaev waves exist. The KNbO₃ and PKN crystals Y-cut X-propagating relate to the condition in which the stiffened shear horizontal wave and pure mechanical Rayleigh wave are present. In this symmetry orientation the sagittal and transverse particle displacements also uncouple. In this situation, the potential is coupled to the shear horizontal displacements only. Electromechanical coupling coefficients K² has a sufficiently large value of above 53 percent with a phase velocity of V equals 3.918 km/s for KNbO₃ crystals and factor K² has a large value of above 23.6 percent and phase velocity V equals 3.054 km/s for PKN crystals.

Citation Download Citation

M. Yu. Dvoesherstov, V. I. Cherednick, A. P. Chirimanov, and S. G. Petrov "Bleustein-Gulyaev wave propagation characteristics in KNbO₃ and PKN crystals", Proc. SPIE 3900, 3rd International Conference on Optical Information Processing, (24 September 1999); https://doi.org/10.1117/12.364556

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