Femtosecond laser structuring and optical properties of a silver and zinc phosphate glass

    Authors

    K. Bourhis; A. Royon; M. Bellec; J. Choi; A. Fargues; M. Treguer; J. J. Videau; D. Talaga; M. Richardson; T. Cardinal;L. Canioni

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    J. Non-Cryst. Solids

    Keywords

    Silver clusters; Luminescence; Multiphoton absorption; Femtosecond laser; writing; X-RAY-DIFFRACTION; TRANSPARENT MATERIALS; LUMINESCENCE; IONIZATION; STORAGE; WAVE; Materials Science, Ceramics; Materials Science, Multidisciplinary

    Abstract

    We report on the micro- and nano-structuring of a silver-containing zinc phosphate glass under high repetition rate femtosecond near-infrared laser exposure. Luminescent silver clusters are locally formed thanks to multi-photon absorption. The excitation mechanisms in the glass are investigated with a transient absorption pump-probe experiment. The free electron density of the femtosecond-laser-induced ionized material for irradiation conditions leading to structural modifications is measured. We show that the involved photo-excitation process in the laser-glass interaction is a four-photon absorption and the measured free electron density is on the order of 10(17) cm(-3), four orders of magnitude below the critical electron density. The luminescence properties of these resulting structures have been investigated. Emission spectra are compared with those collected after different irradiations (gamma and electron beams). The migration of silver species has been assigned to be responsible for local modifications and selective acid etching behavior of the structure. (C) 2010 Elsevier B.V. All rights reserved.

    Journal Title

    Journal of Non-Crystalline Solids

    Volume

    356

    Issue/Number

    44-49

    Publication Date

    1-1-2010

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    2658

    Last Page

    2665

    WOS Identifier

    WOS:000285282100070

    ISSN

    0022-3093

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