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Mechanical fracture in transparent dielectrics under the action of a focused laser radiation

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Abstract

A model is proposed for the process of laser-induced fracture in transparent dielectrics. The fracture occurs when mechanical stresses created in the crystal lattice by a spatially inhomogeneous cloud of nonequilibrium electrons exceed a threshold value. Relationships between of the mechanical stresses, the laser beam parameters and the crystal properties are established. Regions of the most probable primary crack formation are determined.

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Authors and Affiliations

  1. Moscow State University of Technology (STANKIN), Moscow, Russia

    V. N. Strekalov

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  1. V. N. Strekalov
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 26, No. 24, 2000, pp. 19–23.

Original Russian Text Copyright © 2000 by Strekalov.

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Strekalov, V.N. Mechanical fracture in transparent dielectrics under the action of a focused laser radiation. Tech. Phys. Lett. 26, 1081–1083 (2000). https://doi.org/10.1134/1.1337260

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  • DOI: https://doi.org/10.1134/1.1337260

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