Ultraviolet laser-induced single- and two-quantum photochemistry of oxygen-deficient centers in silica glasses

Victor N. Bagratashvili; Alexey O. Rybaltovski; Yaroslav O. Simanovsky; Svetlana I. Tsypina

doi:10.1117/12.147603

24 June 1993 Ultraviolet laser-induced single- and two-quantum photochemistry of oxygen-deficient centers in silica glasses

Victor N. Bagratashvili, Alexey O. Rybaltovski, Yaroslav O. Simanovsky, Svetlana I. Tsypina

Author Affiliations +

Proceedings Volume 1856, Laser Radiation Photophysics; (1993) https://doi.org/10.1117/12.147603
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

The mechanisms of UV induced decomposition of oxygen-deficient centers (ODC) in silica glass has been experimentally studied. It is shown that high intensity irradiation of silica glass results in the two-step decomposition of ODC and formation of paramagnetic E' centers. At the same time at low UV irradiation intensity (laser, mercury lamp) the single quantum reaction of ODC with gas-phase impurities in the net of silica is the dominant process of ODC photoreaction.

Citation Download Citation

Victor N. Bagratashvili, Alexey O. Rybaltovski, Yaroslav O. Simanovsky, and Svetlana I. Tsypina "Ultraviolet laser-induced single- and two-quantum photochemistry of oxygen-deficient centers in silica glasses", Proc. SPIE 1856, Laser Radiation Photophysics, (24 June 1993); https://doi.org/10.1117/12.147603

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