Conversion mechanisms of peroxy linkage defect in silica optical fiber
Source abstract
Abstract
Abstract 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 (Si OH+Si OH) at the ground state (S0) and likely to transfer into Si OOH + Si H 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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Diamond and Carbon-based Materials Research · Glass properties and applications · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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