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Proceedings Paper

Punching holes in glass by CO2 laser
Author(s): Oleg Alexeyevic Novodvorsky; Rafael Ya. Sagdeev; Ye. O. Filippova; Olga D. Khramova
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Paper Abstract

The paper reviews the results of experimental study of punching channels in glass samples by radiation of a single- mode CO2 laser in the intensity range from 4 104-1 106 W/cm2. The effect of pressure of the air flow following in the same direction upon punching velocity has been studied. The threshold conditions of channel formation have been determined by radiation intensity and surplus pressure of the air. The dependence of glass surface tension coefficient on radiation intensity has been estimated. The variation of the surface modulation period by the channel depth has been qualitatively explained on the basis of the model of thermocapillary instability.

Paper Details

Date Published: 20 January 1999
PDF: 6 pages
Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); doi: 10.1117/12.337504
Show Author Affiliations
Oleg Alexeyevic Novodvorsky, NICTL--Laser Research Ctr. (Russia)
Rafael Ya. Sagdeev, NICTL--Laser Research Ctr. (Russia)
Ye. O. Filippova, NICTL--Laser Research Ctr. (Russia)
Olga D. Khramova, NICTL--Laser Research Ctr. (Russia)

Published in SPIE Proceedings Vol. 3688:
6th International Conference on Industrial Lasers and Laser Applications '98
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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