Dynamical studies on the generation of periodic surface structures by femtosecond laser pulses

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Date
2013
Volume
8
Issue
Journal
MATEC Web of Conferences
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Publisher
Les Ulis : EDP Sciences
Abstract

The dynamics of the formation of laser-induced periodic surface structures (LIPSS) on fused silica upon irradiation with linearly polarized fs-laser pulses (50 fs pulse duration, 800 nm center wavelength) is studied experimentally using a double pulse experiment with cross polarized pulse sequences and a trans illumination femtosecond time-resolved (0.1 ps - 1 ns) pump-probe diffraction approach. The results in both experiments confirm the importance of the ultrafast energy deposition and the laser-induced free-electron plasma in the conduction band of the solids for the formation of LIPSS.

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CC BY 2.0 Unported