Experimental results of laser interaction with included gold particles in silica at 1w and 3w (Abstract Only)

Jean-Yves Natoli; Laurent Gallais; Michela Perra; Florian Bonneau; Patrick Combis; Jean Luc Rullier; Philippe Bouchut; Laurent Lamaignere

doi:10.1117/12.472410

30 May 2003 Experimental results of laser interaction with included gold particles in silica at 1w and 3w (Abstract Only)

Jean-Yves Natoli, Laurent Gallais, Michela Perra, Florian Bonneau, Patrick Combis, Jean Luc Rullier, Philippe Bouchut, Laurent Lamaignere

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Proceedings Volume 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization; (2003) https://doi.org/10.1117/12.472410
Event: XXXIV Annual Symposium on Optical Materials for High Power Lasers: Boulder Damage Symposium, 2002, Boulder, CO, United States

Abstract

In order to exhibit the role of laser damage precursor centers in silica, gold particles ranging from 0.2mm to 0.8mm have been included between two coatings of SiO₂ deposited on silica substrates. UV and IR nano-second pulsed irradiations on samples with different SiO₂ over-layer thicknesses (2, 5, 10 mm) has been performed. The damage morphologies observed with Nomarski and atomic force microscopes have shown to be dependent on fluence, wavelength and SiO₂ over-layer thickness. In addition a localized irradiation study using 6mm spot size allows to aim accurately on an isolated particle. The measurement is compared to the experiments presented for a few hundred micrometers spot size. Indeed in this case we have to consider that several particles are simultaneously irradiated. A comparison between the respective morphologies could inform us on potential collective effects of the particles. The choice of experimental test conditions, and the whole associated results will be presented and discussed.

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Jean-Yves Natoli, Laurent Gallais, Michela Perra, Florian Bonneau, Patrick Combis, Jean Luc Rullier, Philippe Bouchut, and Laurent Lamaignere "Experimental results of laser interaction with included gold particles in silica at 1w and 3w (Abstract Only)", Proc. SPIE 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization, (30 May 2003); https://doi.org/10.1117/12.472410

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KEYWORDS

Particles

Silica

Gold

Laser induced damage

Ultraviolet radiation

Atomic force microscope

Laser optics

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