Journal
OPTICS EXPRESS
Volume 19, Issue 1, Pages 271-282Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.000271
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Funding
- Natural Sciences and Engineering Research Council of Canada
- Ontario Ministry of Research and Innovation
- Canada Research Chairs
- Canada Foundation for Innovation
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Using 3D Finite-Difference-Time-Domain simulations, we study the morphology of the laser-created damage inside fused silica. Among the competing effects limiting the intensity in the dielectric, we find the most important is the pulse defocusing by the plasma lens, partially balanced by the Kerr effect. Less important are collisional energy dissipation and laser depletion by multi-photon absorption. We also found that the profile of generated plasma is asymmetrical in the transverse cross-section, with the plasma extended along the direction perpendicular to the laser polarization. (C) 2010 Optical Society of America
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