Color-center generation in silicate glasses exposed to infrared femtosecond pulses

    Authors

    O. M. Efimov; K. Gabel; S. V. Garnov; L. B. Glebov; S. Grantham; M. Richardson;M. J. Soileau

    Comments

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    Abbreviated Journal Title

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

    Keywords

    SELF-PHASE-MODULATION; CROSS-PHASE; LASER-PULSE; PICOSECOND; FS; Optics

    Abstract

    The optical properties of silicate glasses under high-power, 850-nm femtosecond laser irradiation have been studied. Photoinduced processes occurred at irradiances well below the threshold for laser-induce damage. Laser spectral line broadening leading to supercontinuum generation in the visible and UV spectral regions was observed in all the glasses studied. Color-center generation and intrinsic luminescence were found in bore-silicate and alkali silicate glasses. It is believed that these processes result from linear and two-photon absorption of the short-wavelength component of the supercontinuum, causing ionization of the glass matrix. No color-center absorption in the visible region was observed in fused silica at irradiances up to the laser-damage threshold. (C) 1998 Optical Society of America.

    Journal Title

    Journal of the Optical Society of America B-Optical Physics

    Volume

    15

    Issue/Number

    1

    Publication Date

    1-1-1998

    Document Type

    Article

    Language

    English

    First Page

    193

    Last Page

    199

    WOS Identifier

    WOS:000071648800025

    ISSN

    0740-3224

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