کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7899598 1510349 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conversion mechanisms of peroxy linkage defect in silica optical fiber
ترجمه فارسی عنوان
مکانیسم تبدیل از نقص پیوند واژن در فیبر نوری سیلیکا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
We present first principles calculations on conversion of a peroxy linkage (POL, Si  O  O  Si) defect. GW and Bethe-Salpeter equation methods are introduced. POL defect has different reaction paths when interacts with H2. It will convert into silanol (SiOH+SiOH) at the ground state (S0) and likely to transfer into SiOOH + SiH at the triplet state (T1). Optical absorption strength of hydrogen-induced defects is higher than the POL defect between 6 and 8 eV and would be more easily lead to a laser-induced damage phenomenon. Our results not only display a better understanding of how H2 molecular interacts with the POL defect, but also provide a guidance to figure out these defects in silica fiber.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 498, 15 October 2018, Pages 103-108
نویسندگان
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