Optimizing Energy Absorption for Ultrashort Pulse Laser Ablation of Fused Silica

Nicolas Sanner, Maxime Lebugle, Nadezda Varkentina, Marc Sentis, Olivier Utéza

Abstract

We investigate the ultrafast absorption of fused silica irradiated by a single 500 fs laser pulse in the context of micromachining applications. As the absorption of the laser energy is rapid (~fs), the optical properties of the material evolve during the laser pulse, thereby yielding a feedback on the dynamics of absorption and consequently on the amount of energy that is absorbed. Through complete investigation of energy absorption, by combining “pump depletion” and “pump-probe” experiments in a wide range of incident fluences above the ablation threshold, we demonstrate the existence of an optimal fluence range, enabling to turn transiently the material into a state such that each photon is optimally utilized for ablation.

References

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Paper Citation


in Harvard Style

Sanner N., Lebugle M., Varkentina N., Sentis M. and Utéza O. (2016). Optimizing Energy Absorption for Ultrashort Pulse Laser Ablation of Fused Silica . In Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-174-8, pages 69-73. DOI: 10.5220/0005685300690073


in Bibtex Style

@conference{photoptics16,
author={Nicolas Sanner and Maxime Lebugle and Nadezda Varkentina and Marc Sentis and Olivier Utéza},
title={Optimizing Energy Absorption for Ultrashort Pulse Laser Ablation of Fused Silica},
booktitle={Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2016},
pages={69-73},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005685300690073},
isbn={978-989-758-174-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Optimizing Energy Absorption for Ultrashort Pulse Laser Ablation of Fused Silica
SN - 978-989-758-174-8
AU - Sanner N.
AU - Lebugle M.
AU - Varkentina N.
AU - Sentis M.
AU - Utéza O.
PY - 2016
SP - 69
EP - 73
DO - 10.5220/0005685300690073