Abstract
Three types of optical defects are present in the starting structure of specimens of PMM: nontransparent inclusions (1 µ and above), small (less than 1 µ) scattering centers, and local elastic-stress fields. The relationship between these defects and the damage centers excited by laser radiation is considered.
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Literature cited
B. M. Ashkinadze, N. V. Volkova, V. A. Likhachev, S. M. Ryvkin, V. M. Salmanov, and I. D. Yaroshetskii, Fiz. Tverd. Tela,9, 476 (1967).
N. V. Volkova, V. A. Likhachev, S. M. Ryvkin, V. M. Salmanov, M. I. Stepanov, L. M. Shestopalov, and I. D. Yaroshetskii, Fiz. Tverd. Tela,9, 1870 (1967).
N. V. Volkova, Yu. A. Ershov, V. A. Likhachev, V. P. Osachev, A. A. Patrin, A. P. Fedotov, L. M. Shestopalov, and I. D. Yaroshetskii, Fiz. Tverd. Tela,11, 2672 (1969).
Additional information
Ioffe Physicotechnical Institute, Academy of Sciences of the USSR, Leningrad. Translated from Mekhanika Polimerov, No. 5, pp. 944–945, September–October, 1970.
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Volkova, N.V. Structural characteristics of laser damage in polymethyl methacrylate. Polymer Mechanics 6, 826–827 (1970). https://doi.org/10.1007/BF00856223
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DOI: https://doi.org/10.1007/BF00856223