GAMMA-RAY INDUCED 2 ev OPTICAL ABSORPTION BAND IN PURE-SILICA CORE FIBERS.

Kaya Nagasawa, Yoshimichi Ohki, Yoshimasa Hama

    Research output: Chapter in Book/Report/Conference proceedingChapter

    32 Citations (Scopus)

    Abstract

    Gamma-ray induced 2 ev band appears at different wavelengths depending on the OH-group content. It is found that 2 ev band formed in low-OH content fibers, formerly ascribed to another precursor, is caused by non-bridging oxygen hole centers (NBOHC) as is the one formed in high-OH content fibers. The differences in peak wavelength and in oscillator strength are responsible for hydrogen bonding between NBOHC and a nearly OH-group. The NBOHC with a hydrogen bond in the shape formed more in high-OH content fibers absorbs light around 600 nm, while it absorbs around 630 nm when it exists without forming a hydrogen bond.

    Original languageEnglish
    Title of host publicationJapanese Journal of Applied Physics, Part 2: Letters
    Volume26
    Edition6
    Publication statusPublished - 1987 Jun

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    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Nagasawa, K., Ohki, Y., & Hama, Y. (1987). GAMMA-RAY INDUCED 2 ev OPTICAL ABSORPTION BAND IN PURE-SILICA CORE FIBERS. In Japanese Journal of Applied Physics, Part 2: Letters (6 ed., Vol. 26)