Dynamics of the 5 eV optical absorption in SiO2 glass
- 28 June 1993
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 62 (26), 3396-3398
- https://doi.org/10.1063/1.109028
Abstract
The optical absorption at 5 eV in SiO2 glass was observed, using laser calorimetry, to change reversibly depending on the intensity of UV light. The generation and bleaching of an absorption band at 5 eV by two‐ and one‐photon absorption processes, respectively, can explain these reversible changes. This observation supports the structural model of unrelaxed oxygen deficiency center for the 5 eV absorption band in silica.Keywords
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