Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass

Mark A. Hughes, Richard J. Curry, Daniel W. Hewak

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Vanadium doped chalcogenide glass has potential as an active gain medium, particularly at telecommunications wavelengths. This dopant has three spin allowed absorption transitions at 1100, 737 and 578 nm, and a spin forbidden absorption transition at 1000 nm. X-ray photoelectron spectroscopy indicated the presence of vanadium in a range of oxidation states from V+ to V5+. Excitation of each absorption band resulted in the same characteristic emission spectrum and lifetime, indicating that only one oxidation state is optically active. Arguments based on Tanabe-Sugano analysis indicated that the configuration of the optically active vanadium ion was octahedral V2+. The calculated crystal field parameters (Dq/B, B and C/B) were 1.85, 485.1 and 4.55, respectively.

    Original languageEnglish
    Pages (from-to)315-322
    Number of pages8
    JournalOptical Materials Express
    Volume33
    Issue number3
    DOIs
    Publication statusPublished - Jan 2011

    Keywords

    • Chalcogenide
    • Glass
    • Vanadium

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