Processing and characterization of new passive and active oxysulfide glasses in the Ge-Ga-Sb-S-O system

    Authors

    L. Petit; J. Abel; T. Anderson; J. Choi; V. Nazabal; V. Moizan; M. Couzi; M. Richardson; C. Maurel; T. Cardinal;K. Richardson

    Comments

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    Abbreviated Journal Title

    J. Solid State Chem.

    Keywords

    Oxysulfide; Raman spectroscopy; Erbium; Luminescence properties; Laser; irradiation; Photo-sensitivity; OPTICAL-FIBER AMPLIFIERS; CHALCOGENIDE GLASSES; PHOTO-RESPONSE; FILMS; Chemistry, Inorganic & Nuclear; Chemistry, Physical

    Abstract

    New passive and active oxysulfide glasses have been prepared in the Ge-Ga-Sb-S-O system employing a two-step melting process which involves the processing of the chalcogenide glass (ChG) and its subsequent melting with amorphous GeO(2) or Sb(2)O(3) powder. Optical characterization of the oxysulfide glasses has shown that the UV cut-off wavelength decreases with increasing oxygen content. Using Raman spectroscopy, correlations have been made between the formation of new Ge- and Sb-based oxysulfide structural units, the Sb content and the O/S ratio. We demonstrate the successful processing of active rare earth doped oxysulfide glasses by melting the chalcogenide glass with Er(2)O(3) and Sb(2)O(3) and also by melting the Er(3+) doped chalcogenide glass with Sb(2)O(3). Modification of the emission spectra at 1500 nm of Er(3+) doped samples with the introduction of oxygen revealed that Er(3+) most likely exists in dual O- and S-neighbor environments. Finally, the photo-response of these new glasses upon near-IR femtosecond laser irradiation has been investigated as a function of Sb content and O/S ratio and shows that the glasses are photo-sensitive to NIR fs laser light with the magnitude of the photo-sensitivity dependent on the glass' Sb content and O/S ratio. (C) 2009 Elsevier Inc. All rights reserved.

    Journal Title

    Journal of Solid State Chemistry

    Volume

    182

    Issue/Number

    10

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    2646

    Last Page

    2655

    WOS Identifier

    WOS:000270747800010

    ISSN

    0022-4596

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