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Glass and Ceramics

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01-03-2015 | SCIENCE FOR GLASS PRODUCTION

Thermal Cleavage of Optical Glass by Strontium-Vapor Laser Radiation

Authors: A. N. Soldatov, S. Yu. Mirza, Yu. P. Polunin, I. V. Reimer, A. S. Shumeiko, N. A. Yudin

Published in: Glass and Ceramics | Issue 11-12/2015

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Abstract

Controlled thermal cleavage of optical glass by strontium-vapor laser radiation was studied. It was shown that high-quality complete separation of display glass is determined by the multiwave spectrum of the absorbed radiation. Sr-Laser radiation (λ = 6.45 μm) absorbed in a about 200 μm thick ‘top’ layer forms a surface microcrack, just as in the case of CO₂ laser radiation (10.6 μm). Radiation in the about 1 and 3 μm range forms a ‘volume’ microcrack. Together these cracks create an additional effect making it possible to increase in the periodic-pulse regime the rate and quality of the laser separation of optical glass at comparatively low average lasing power.

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Title: Thermal Cleavage of Optical Glass by Strontium-Vapor Laser Radiation
Authors: A. N. Soldatov
S. Yu. Mirza
Yu. P. Polunin
I. V. Reimer
A. S. Shumeiko
N. A. Yudin
Publication date: 01-03-2015
Publisher: Springer US
Published in: Glass and Ceramics / Issue 11-12/2015
Print ISSN: 0361-7610
Electronic ISSN: 1573-8515
DOI: https://doi.org/10.1007/s10717-015-9692-8

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