Velocity angular dispersion of surface and bulk modes in LiTaO3 at hypersonic frequencies

M. H. Kuok; S. C. Ng; V. L. Zhang; H. J. Fan

doi:10.1063/1.1343469

Velocity angular dispersion of surface and bulk modes in LiTaO₃ at hypersonic frequencies

M. H. Kuok^*, S. C. Ng, V. L. Zhang, H. J. Fan

^*Corresponding author for this work

National University of Singapore

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The existence of two surface acoustic waves, the Rayleigh wave and the second leaky wave, on X-cut LiTaO₃ has been detected using Brillouin scattering. Evidence of dispersion between ultrasonic and hypersonic velocities was found for both surface and bulk acoustic waves. Elastic constant values were determined from a simultaneous least-squares fit of the angular dispersion data for the longitudinal and the two transverse hulk acoustic modes.

Original language	English
Pages (from-to)	607-609
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	5
DOIs	https://doi.org/10.1063/1.1343469
Publication status	Published - Jan 29 2001
Externally published	Yes

ASJC Scopus Subject Areas

Physics and Astronomy (miscellaneous)

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abstract = "The existence of two surface acoustic waves, the Rayleigh wave and the second leaky wave, on X-cut LiTaO3 has been detected using Brillouin scattering. Evidence of dispersion between ultrasonic and hypersonic velocities was found for both surface and bulk acoustic waves. Elastic constant values were determined from a simultaneous least-squares fit of the angular dispersion data for the longitudinal and the two transverse hulk acoustic modes.",

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AU - Kuok, M. H.

AU - Ng, S. C.

AU - Zhang, V. L.

AU - Fan, H. J.

PY - 2001/1/29

Y1 - 2001/1/29

N2 - The existence of two surface acoustic waves, the Rayleigh wave and the second leaky wave, on X-cut LiTaO3 has been detected using Brillouin scattering. Evidence of dispersion between ultrasonic and hypersonic velocities was found for both surface and bulk acoustic waves. Elastic constant values were determined from a simultaneous least-squares fit of the angular dispersion data for the longitudinal and the two transverse hulk acoustic modes.

AB - The existence of two surface acoustic waves, the Rayleigh wave and the second leaky wave, on X-cut LiTaO3 has been detected using Brillouin scattering. Evidence of dispersion between ultrasonic and hypersonic velocities was found for both surface and bulk acoustic waves. Elastic constant values were determined from a simultaneous least-squares fit of the angular dispersion data for the longitudinal and the two transverse hulk acoustic modes.

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Velocity angular dispersion of surface and bulk modes in LiTaO₃ at hypersonic frequencies

Abstract

ASJC Scopus Subject Areas

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