Optical vibronic spectra in reactor neutron irradiated α-Al 2O3

Rahman Abu Zayed Mohammad Saliqur, T. Awata, N. Yamashita, Y. Inada, K. Oshima, Qiu Xu, K. Atobe

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

The excitation spectra with the vibronic structure near the 360 nm absorption band and emission spectra with the vibronic structure near the 430 nm emission band been studied comparing neutron irradiated α-Al 2O3 at pile temperature (360 K) and at 20 K. In particular, the optical vibronic emission spectra of the neutron irradiated single crystal α-Al2O3 in low temperature have been analyzed. Huang Rhys factors of 360 nm excitation and 430 nm emission band are calculated. Also, Debye temperature has been estimated by curve fitting using temperature dependence of the excitation band. It can be seen that the excitation band derives from F2+ type center and emission band is suggested as F+ type center.

Original languageEnglish
Pages (from-to)551-557
Number of pages7
JournalPhysics Procedia
Volume2
Issue number2
DOIs
Publication statusPublished - Aug 2009
Event2008 International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL'08 - Lyon, France
Duration: Jul 7 2008Jul 11 2008

Keywords

  • Neutron irradiation
  • Vibronic structure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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