Picosecond Transient Grating Generation Of Tunable Ultrasonic Waves

Keith A. Nelson; R.J. Dwayne Miller; D. R. Lutz; M. D. Fayer

doi:10.1117/12.933206

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23 April 1982 Picosecond Transient Grating Generation Of Tunable Ultrasonic Waves

Keith A. Nelson, R.J. Dwayne Miller, D. R. Lutz, M. D. Fayer

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Proceedings Volume 0322, Picosecond Lasers and Applications; (1982) https://doi.org/10.1117/12.933206
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

A convenient method of optically exciting and monitoring coherent acoustic waves in transparent or light-absorbing liquids and solids is described. The acoustic frequency is easily and continuously tunable from ≈ 3 MHz to at least 30 GHz with our experimental apparatus and in principle over a considerably wider range. In anisotropic materials any propagation direction can be selected. The optically generated acoustic waves can be optically amplified, cancelled, or phase shifted.

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Keith A. Nelson, R.J. Dwayne Miller, D. R. Lutz, and M. D. Fayer "Picosecond Transient Grating Generation Of Tunable Ultrasonic Waves", Proc. SPIE 0322, Picosecond Lasers and Applications, (23 April 1982); https://doi.org/10.1117/12.933206

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