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Title: Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization

Abstract

We study surface ablation of dielectrics with single-shot few-cycle optical pulse (∼10 fs) in air, at intensities below and above the onset of air ionization. We perform 3D analysis and careful calibration of the fluence distribution at the laser focus, spanning from linear– to nonlinear– focusing regimes, enabling to thoroughly characterize the severe limitation of the fluence delivered onto the sample surface upon increase of incident pulse energy. Despite significant beam reshaping taking place at high fluence, we demonstrate that it is nevertheless possible to confidently predict the resulting crater profiles on fused silica surface, even in the regime of filamentation.

Authors:
; ; ;  [1]
  1. Aix Marseille Univ, CNRS, LP3, UMR7341, 13288 Marseille (France)
Publication Date:
OSTI Identifier:
22594390
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; AIR; BEAMS; CALIBRATION; CRATERS; DIELECTRIC MATERIALS; DISTRIBUTION; FOCUSING; IONIZATION; LASERS; NONLINEAR PROBLEMS; PULSES; SILICA; SURFACES; THREE-DIMENSIONAL CALCULATIONS

Citation Formats

Pasquier, C., E-mail: pasquier@lp3.univ-mrs.fr, Sentis, M., Utéza, O., and Sanner, N., E-mail: sanner@lp3.univ-mrs.fr. Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization. United States: N. p., 2016. Web. doi:10.1063/1.4960152.
Pasquier, C., E-mail: pasquier@lp3.univ-mrs.fr, Sentis, M., Utéza, O., & Sanner, N., E-mail: sanner@lp3.univ-mrs.fr. Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization. United States. doi:10.1063/1.4960152.
Pasquier, C., E-mail: pasquier@lp3.univ-mrs.fr, Sentis, M., Utéza, O., and Sanner, N., E-mail: sanner@lp3.univ-mrs.fr. Mon . "Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization". United States. doi:10.1063/1.4960152.
@article{osti_22594390,
title = {Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization},
author = {Pasquier, C., E-mail: pasquier@lp3.univ-mrs.fr and Sentis, M. and Utéza, O. and Sanner, N., E-mail: sanner@lp3.univ-mrs.fr},
abstractNote = {We study surface ablation of dielectrics with single-shot few-cycle optical pulse (∼10 fs) in air, at intensities below and above the onset of air ionization. We perform 3D analysis and careful calibration of the fluence distribution at the laser focus, spanning from linear– to nonlinear– focusing regimes, enabling to thoroughly characterize the severe limitation of the fluence delivered onto the sample surface upon increase of incident pulse energy. Despite significant beam reshaping taking place at high fluence, we demonstrate that it is nevertheless possible to confidently predict the resulting crater profiles on fused silica surface, even in the regime of filamentation.},
doi = {10.1063/1.4960152},
journal = {Applied Physics Letters},
number = 5,
volume = 109,
place = {United States},
year = {Mon Aug 01 00:00:00 EDT 2016},
month = {Mon Aug 01 00:00:00 EDT 2016}
}