Photothermal microscopy for in-situ study of laser damage induced by gold inclusions

Annelise During; Mireille Commandre; Caroline Fossati; Jean-Yves Natoli; Jean-Luc Rullier; Herve Bercegol; Philippe Bouchut

doi:10.1117/12.472434

30 May 2003 Photothermal microscopy for in-situ study of laser damage induced by gold inclusions

Annelise During, Mireille Commandre, Caroline Fossati, Jean-Yves Natoli, Jean-Luc Rullier, Herve Bercegol, Philippe Bouchut

Author Affiliations +

Proceedings Volume 4932, Laser-Induced Damage in Optical Materials: 2002 and 7th International Workshop on Laser Beam and Optics Characterization; (2003) https://doi.org/10.1117/12.472434
Event: XXXIV Annual Symposium on Optical Materials for High Power Lasers: Boulder Damage Symposium, 2002, Boulder, CO, United States

Abstract

A photothermal microscope has been combined with an experimental set-up allowing damage threshold measurements at the same wavelength. The microscope is based on photothermal deflection of the transmitted probe beam: the CW pump beam (1.06 μm wavelength) and the probe beam are collinear and focused through the same objective. The diameter of the pump beam on the sample surface is 1 μm. Laser damage thresholds are measured thanks to a pulsed beam (1.06 μm wavelength and 6 nanosecond pulse) and the spatial position of the pulsed beam is controlled by a CCD camera. This experimental setup has been used to study the behavior of metallic inclusions in dielectric materials in laser damage processes. Results are presented with gold inclusions of about 600 nm in diameter in silica.

Citation Download Citation

Annelise During, Mireille Commandre, Caroline Fossati, Jean-Yves Natoli, Jean-Luc Rullier, Herve Bercegol, and Philippe Bouchut "Photothermal microscopy for in-situ study of laser damage induced by gold inclusions", 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/10.1117/12.472434

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