Frequency dependence in the initiation of ultrafast laser-induced damage

Jeremy R. Gulley

doi:10.1117/12.867347

29 November 2010 Frequency dependence in the initiation of ultrafast laser-induced damage

Jeremy R. Gulley

Proceedings Volume 7842, Laser-Induced Damage in Optical Materials: 2010; 78420U (2010) https://doi.org/10.1117/12.867347
Event: Laser Damage Symposium XLII: Annual Symposium on Optical Materials for High Power Lasers, 2010, Boulder, Colorado, United States

Abstract

Numerous studies have investigated the role of photoionization in ultrafast laser-induced damage of bulk dielectrics. This study examines the role of spectral width and instantaneous laser frequency in laser-induced damage using a frequency dependent multiphoton ionization model and numerical simulation of an 800 nm laser pulse propagating through fused silica. When the individual photon wavelengths are greater than 827 nm, an additional photon is required for photoionization, reducing the probability of the event by many orders of magnitude. Simulation results suggest that this frequency dependence may significantly affect the processes of laser-induced damage and filamentation.

Citation Download Citation

Jeremy R. Gulley "Frequency dependence in the initiation of ultrafast laser-induced damage", Proc. SPIE 7842, Laser-Induced Damage in Optical Materials: 2010, 78420U (29 November 2010); https://doi.org/10.1117/12.867347

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