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

    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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