Title

Evolution of the linear and nonlinear optical properties of femtosecond laser exposed fused silica

Authors

Authors

A. Royon; C. Rivero-Baleine; A. Zoubir; L. Canioni; M. Couzi; T. Cardinal; E. Fargin; M. Richardson;K. Richardson

Abbreviated Journal Title

J. Opt. Soc. Am. B-Opt. Phys.

Keywords

WRITTEN WAVE-GUIDES; VITREOUS SILICA; GLASS; SUSCEPTIBILITIES; Optics

Abstract

Three fused silica samples possessing different impurity levels and exposed to a near infrared feratosecond laser are investigated. The laser-induced defects are identified from absorption, luminescence, and Raman spectroscopy. Their linear and nonlinear optical properties are measured from Kramers-Kronig calculations and third-harmonic generation microscopy experiments. No conclusive correlation between the change in the optical properties, the initial impurity levels, and the photoinduced structures could be established based on the results obtained in this study. In addition, several hypotheses (densification and color center formation) have been rejected to explain why the linear and nonlinear optical properties of the photoinduced structures follow a contradicting evolution. This phenomenon is attributed to an experimental artifact on the measurement of the third-order susceptibility due to scattering of the photoinduced structures. (C) 2009 Optical Society of America

Journal Title

Journal of the Optical Society of America B-Optical Physics

Volume

26

Issue/Number

11

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

2077

Last Page

2083

WOS Identifier

WOS:000272143000016

ISSN

0740-3224

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