Formation of shock electromagnetic waves during femtosecond pulse propagation in transparent solids

Vitali E. Gruzdev; Anastasia S. Gruzdeva

doi:10.1117/12.382067

14 April 2000 Formation of shock electromagnetic waves during femtosecond pulse propagation in transparent solids

Vitali E. Gruzdev, Anastasia S. Gruzdeva

Proceedings Volume 3927, Optical Pulse and Beam Propagation II; (2000) https://doi.org/10.1117/12.382067
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

There is considered formation and propagation of shock electromagnetic waves (SEW) of visible spectral range as possible nonlinear optical phenomenon taking place at laser intensities characteristic of femtosecond laser interaction with transparent solids. Main regularities of SHEW formation are studied on the basis of 1D model of plane-wave propagation in isotropic dielectric with nonlinear optical response. Special attention is paid to influence of color dispersion and absorption on SEW formation and propagation. Necessary conditions for appearing of SHEW are obtained, in particular, threshold amplitude is estimated. There is presented a model for numerical simulation of SHEW formation and propagation influenced by dispersion of linear and nonlinear parts of refractive index. Using the simulation, we studied dynamics of SHEW formation on several first optical cycles of femtosecond laser pulse in transparent medium. Important observed features of SHEW of optical frequency are discussed. Obtained results are considered from the viewpoint of experiments on femtosecond laser interaction, in particular, laser-induced damage.

Citation Download Citation

Vitali E. Gruzdev and Anastasia S. Gruzdeva "Formation of shock electromagnetic waves during femtosecond pulse propagation in transparent solids", Proc. SPIE 3927, Optical Pulse and Beam Propagation II, (14 April 2000); https://doi.org/10.1117/12.382067

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