Punching holes in glass by CO2 laser

Oleg Alexeyevic Novodvorsky; Rafael Ya. Sagdeev; Ye. O. Filippova; Olga D. Khramova

doi:10.1117/12.337504

20 January 1999 Punching holes in glass by CO₂ laser

Oleg Alexeyevic Novodvorsky, Rafael Ya. Sagdeev, Ye. O. Filippova, Olga D. Khramova

Proceedings Volume 3688, 6th International Conference on Industrial Lasers and Laser Applications '98; (1999) https://doi.org/10.1117/12.337504
Event: 6th International Conference on Industrial Lasers and Laser Applications '98, 1998, Shatura, Moscow Region, Russian Federation

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.

Citation Download Citation

Oleg Alexeyevic Novodvorsky, Rafael Ya. Sagdeev, Ye. O. Filippova, and Olga D. Khramova "Punching holes in glass by CO₂ laser", Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); https://doi.org/10.1117/12.337504

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