TITLE

High accuracy noncontact laser-optical method for measuring surface acoustic wave velocity and attenuation

AUTHOR(S)
Burov, J. I.; Branzalov, K. P.; Ivanov, D. V.
PUB. DATE
January 1985
SOURCE
Applied Physics Letters;1/15/1985, Vol. 46 Issue 2, p141
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A high accuracy noncontact laser-optical method for measuring surface acoustic wave (SAW) velocity and attenuation is described. The accuracy depends on the power of the two lasers, used for generation and probe of SAW and on bandwidth of the intensity modulation. The method is applicable to all acoustic materials including the nonpiezoelectrical ones.
ACCESSION #
9817056

 

Related Articles

  • Absolute pressure measurements on a nanosecond time scale using surface plasmons. Schilling, A.; Yavas¸, O.; Bischof, J.; Boneberg, J.; Leiderer, P. // Applied Physics Letters;12/30/1996, Vol. 69 Issue 27, p4159 

    Transient acoustic waves generated by laser-induced bubble formation at a liquid–solid interface are sensitively monitored using optically excited surface plasmons. This method enables the detection of both the compressive and tensile waves with high accuracy as demonstrated for the...

  • High-resolution imaging of surface acoustic wave scattering. Hesjedal, T.; Behme, G. // Applied Physics Letters;3/26/2001, Vol. 78 Issue 13, p1948 

    We examine the scattering of surface acoustic waves (SAWs) by single dots, periodic and locally damped two-dimensional dot lattices. Employing the scanning acoustic force microscope, SAW fields are imaged with nanometer resolution. We study the influence of a roughly wavelength-sized single dot...

  • Acoustic scattering of impulsive geometrical waves by a glass sphere in water. Latard, V.; Merlen, A.; Preobazhenski, V.; Ahyi, A.C. // Applied Physics Letters;3/29/1999, Vol. 74 Issue 13, p1919 

    Reports that an elastic sphere is acoustically excited in water by a punctual pulse source. Identification of the geometrical waves diffused in the fluid by a high-speed visualization system; Description of the acoustic diffusion on elastic bodies even for ultrasonic frequencies.

  • Dynamic higher-order correction of acoustic aberration due to material microstructure. Sharples, S. D; Clark, M.; Somekh, M. G. // Applied Physics Letters;9/16/2002, Vol. 81 Issue 12, p2288 

    Material microstructure, such as grains in metals, can perturb ultrasound as it propagates through— or on the surface of—the material. This acoustic aberration affects the accuracy and reliability of ultrasound measurements and is a fundamental limit to resolution for many...

  • Interactions of surface plasmons with surface acoustic waves and the study of the properties of Ag films. Sun, X.; Shiokawa, S.; Matsui, Y. // Journal of Applied Physics;1/1/1991, Vol. 69 Issue 1, p362 

    Presents information on a study which introduced a theoretical and experimental description of the interaction of a surface plasmon (SP) with a surface acoustic wave which generates dynamic sinusoidal gratings on the interface. Basic conditions for SP to exist on the interface of two media;...

  • Further evidence for two-component surface acoustic wave reflections from surface breaking slots. Dewhurst, R. J.; McKie, A. D. W.; Palmer, S. B. // Applied Physics Letters;12/22/1986, Vol. 49 Issue 25, p1694 

    When laser-generated Rayleigh pulses interact with surface breaking slots in metals, two distinct reflections are present in the captured waveform. While the first component is accepted as arising from the direct reflection of a Rayleigh pulse from the top of the defect, the origin and features...

  • Correlation between the elastic and structural properties of thin-film tungsten silicide layers from surface acoustic wave analysis. Crean, G. M.; Golanski, A.; Oberlin, J. C.; Perio, A. // Applied Physics Letters;11/16/1987, Vol. 51 Issue 20, p1591 

    Thin, silicon-rich tungsten silicide layers, deposited using the co-sputtering technique and annealed within the temperature range 750–950 °C, were investigated using the acoustic material signature technique, transmission electron microscopy, and the Rutherford backscattering...

  • Acoustic waves in random discrete media via a differential scheme. Beltzer, Abraham I.; Brauner, Neima // Journal of Applied Physics;7/15/1986, Vol. 60 Issue 2, p538 

    Presents information on a study which extended the concept of differential effective media to the dynamic case by imposing the condition of causality. Description of a coherent wave which is formed from the constructive interference of scattered waves in a random medium; Discussion on the...

  • Effects of trapped electron temperature, dust charge variations, and grain radius on the existence of the dust-ion-acoustic waves. El-Labany, S.K.; Moslem, Waleed M.; Mowafy, A.E. // Physics of Plasmas;Nov2003, Vol. 10 Issue 11, p4217 

    The ionization source model is considered to study the effects of trapped electron temperature, dust charge variations, and grain radius on the nonlinear dust ion acoustic waves (DIAWs) in dusty plasmas having trapped electrons. It has been shown that the nonlinear DIAWs damp waves and these...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics