Dissipative processes in laser-induced electrostrictive gratings

Walter Hubschmid; Bernd Hemmerling; A. Stampanoni-Panariello

doi:10.1117/12.239786

10 May 1996 Dissipative processes in laser-induced electrostrictive gratings

Walter Hubschmid, Bernd Hemmerling, A. Stampanoni-Panariello

Proceedings Volume 2797, Nonlinear Spectroscopy and Ultrafast Phenomena; (1996) https://doi.org/10.1117/12.239786
Event: International Conference on Coherent and Nonlinear Optics, 1995, St. Petersburg, Russian Federation

Abstract

The combined effect of electrostriction and radiative absorption in the formation of laser induced gratings in fluids is calculated. For pure electrostrictive gratings, the reflectivity is a damped oscillation with alternately higher and lower maxima. The damping is determined by viscosity and heat transfer. The normalized difference in height is determined by the thermal conductivity of the medium. Therefore, in principle, a separate determination of viscosity and thermal conductivity is possible. Measurements have been performed in the nonresonant or pure electrostrictive domain for argon and nitrogen.

Citation Download Citation

Walter Hubschmid, Bernd Hemmerling, and A. Stampanoni-Panariello "Dissipative processes in laser-induced electrostrictive gratings", Proc. SPIE 2797, Nonlinear Spectroscopy and Ultrafast Phenomena, (10 May 1996); https://doi.org/10.1117/12.239786

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