Implications of laser beam metrology on laser damage temporal scaling law for dielectric materials in the picosecond regime

The Review of Scientific Instruments
A OlléLaurent Lamaignère

Abstract

We report on the implications that the temporal and spatial beam metrologies have on the accuracy of temporal scaling laws of Laser Induced Damage Threshold (LIDT) for dielectric materials in the picosecond regime. Thanks to a specific diagnostic able to measure the temporal pulse shape of subpicosecond and picosecond pulses, we highlight through simulations and experiments how the temporal shape has to be taken into account first in order to correctly understand the temporal dependency of dielectrics LIDT. This directly eases the interpretation of experimental temporal scaling laws of LIDT and improves their accuracy as a prediction means. We also give numerically determined benchmark temporal scaling laws of intrinsic LIDT for SiO2 (thin film) based on the model developed for this work. Finally, we show as well what kind of spatial metrology is needed during any temporal scaling law determination to take into account potential variations of the spatial profile.

References

Jan 15, 1996·Physical Review. B, Condensed Matter·B C StuartM D Perry
Nov 6, 2007·The Review of Scientific Instruments·L LamaignèreH Bercegol
Oct 1, 1977·Applied Optics·M E Riley, M A Gusinow
Jun 3, 2010·The Review of Scientific Instruments·D BigourdC Rouyer
May 5, 2012·Optics Letters·Benoit MangoteRamutis Drazdys
Feb 12, 2014·Applied Optics·Laurent Gallais, Mireille Commandré
May 1, 2015·Optics Letters·Martin SozetLaurent Lamaignère
Aug 10, 2017·Optics Express·N BlanchotF Laniesse

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Citations

Jul 16, 2020·Optics Letters·Alexandre OlléLaurent Lamaignère

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