Calculation of reciprocal velocity curves of intrinsic surface acoustic wave in quartz crystal

Tao Liu; Kuanxin Yu

doi:10.1117/12.868316

17 November 2010 Calculation of reciprocal velocity curves of intrinsic surface acoustic wave in quartz crystal

Tao Liu, Kuanxin Yu

Proceedings Volume 7847, Optoelectronic Devices and Integration III; 784732 (2010) https://doi.org/10.1117/12.868316
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Quartz crystal has excellent piezoelectric properties, it can be used as substrates of surface acoustic wave (SAW) devices, for example delay line, filter, oscillator, convolver, acousto-optic (AO) device and so on. In this paper, Intrinsic SAW basic equation group and SAW mechanical boundary condition equation group are deduced from character equation of the crystal. Intrinsic SAW velocities are calculated using circle iterative method in three coordinate planes of quartz crystal systematically. Stiffness coefficient of piezoelectric crystal can be changed by piezoelectric effect and it is named as piezoelectric modified stiffness coefficient. Reciprocal velocity curves of quartz crystal in the three coordinate planes using the non-modified stiffness coefficients and the piezoelectric modified stiffness coefficients are drawn respectively. Configurations and periods of the curves are similar to projection figures of crystal lattice of the triangle crystal system in same coordinate planes. It means that there is internal relationship between the SAW properties and point group symmetries of the crystal. Research results lay a solid base for design and manufacture of the SAW device. It has theoretical significance and practical value.

Citation Download Citation

Tao Liu and Kuanxin Yu "Calculation of reciprocal velocity curves of intrinsic surface acoustic wave in quartz crystal", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 784732 (17 November 2010); https://doi.org/10.1117/12.868316

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available