Behavior of laser-induced emission intensity versus laser power density during breakdown of optical materials

Xianglei Mao; Andres J. Fernandez; Richard E. Russo

doi:10.1117/12.213739

14 July 1995 Behavior of laser-induced emission intensity versus laser power density during breakdown of optical materials

Xianglei Mao, Andres J. Fernandez, Richard E. Russo

Author Affiliations +

Proceedings Volume 2428, Laser-Induced Damage in Optical Materials: 1994; (1995) https://doi.org/10.1117/12.213739
Event: Laser-Induced Damage in Optical Materials: 1994, 1994, Boulder, CO, United States

Abstract

Breakdown in SiO₂ is studied versus fluence using an intensified CCD spectrometer. Broad-band photoluminescence spectra were measured versus number of laser pulses. Before the breakdown of fused silica, the intensity of this photoluminescence increases. After breakdown, a plasma is formed and ablated Si emission lines are measured. The plasma is characterized by its emission spectra and excitation temperature temporal profiles. The temperature profiles of the plasma are calculated by the Bolzmann method. These data are studied to provide fundamental information of breakdown mechanisms in optical materials.

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Xianglei Mao, Andres J. Fernandez, and Richard E. Russo "Behavior of laser-induced emission intensity versus laser power density during breakdown of optical materials", Proc. SPIE 2428, Laser-Induced Damage in Optical Materials: 1994, (14 July 1995); https://doi.org/10.1117/12.213739

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