1 February 2000 Formation and propagation of shock electromagnetic waves in transparent solids
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Proceedings Volume 3885, High-Power Laser Ablation II; (2000) https://doi.org/10.1117/12.376980
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan
Abstract
There is considered formation and propagation of shock electromagnetic waves (SHEW) of visible spectral range as possible nonlinear optical phenomenon taking place at laser intensities characteristic of femtosecond laser interaction with transparent isotropic solids. Main regularities of SHEW formation are studied on the basis of 1D model of plane-wave propagation in isotropic dielectric with Kerr nonlinear optical response. Necessary conditions for formation 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 damage and ablation.
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Vitali E. Gruzdev, Anastasia S. Gruzdeva, "Formation and propagation of shock electromagnetic waves in transparent solids", Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376980; https://doi.org/10.1117/12.376980
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