Ultraviolet-light-induced processes in germanium-doped silica

Martin Kristensen

Research output: Contribution to journalJournal articleResearchpeer-review

352 Downloads (Pure)

Abstract

A model is presented for the interaction of ultraviolet (UV) light with germanium-doped silica glass. It is assumed that germanium sites work as gates for transferring the excitation energy into the silica. In the material the excitation induces forbidden transitions to two different defect states which are responsible for the observed refractive index changes. Activation energies [1.85 +/-0.15 eV and 1.91 +/-0.15 eV] and rates [(2.7 +/-1.9) x 10(13) Hz and(7.2 +/-4.5) x 10(13) Hz] are determined for thermal elimination of these states. Good agreement is found with experimental results and new UV-induced effects are predicted.
Original languageEnglish
JournalPhysical Review B
Volume64
Issue number14
Pages (from-to)144201
ISSN2469-9950
DOIs
Publication statusPublished - 2001

Bibliographical note

Copyright (2001) American Physical Society

Keywords

  • EXCIMER-LASER
  • GE
  • CENTERS
  • EV LUMINESCENCE
  • FIBER BRAGG GRATINGS
  • GLASSES
  • ABSORPTION-BANDS
  • WAVE-GUIDES
  • OPTICAL FIBERS
  • REFRACTIVE-INDEX GRATINGS

Fingerprint Dive into the research topics of 'Ultraviolet-light-induced processes in germanium-doped silica'. Together they form a unique fingerprint.

Cite this