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Proceedings Paper

Optical studies of excitons in mica crystals
Author(s): Nobuhito Ohno; Yukihisa Kiyama; Minoru Itoh
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Paper Abstract

Optical studies of excitons in mica crystals have been carried out using the synchrotron radiation as a light source. Reflection measurements reveal that the direct allowed exciton transition appears at 9.6 eV in both natural phlogopite and synthetic fluor-phlogopite. Absorption and luminescence spectra of these two micas are also investigated. An intrinsic luminescence is found in synthetic mica to occur at 5.46 eV, having two decay components. This luminescence is supposed to arise from the radiative annihilation of self-trapped excitons. The above results are discussed in comparison with those of crystalline quartz.

Paper Details

Date Published: 9 February 1995
PDF: 10 pages
Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200950
Show Author Affiliations
Nobuhito Ohno, Osaka Univ. (Japan)
Yukihisa Kiyama, Osaka Univ. (Japan)
Minoru Itoh, Shinshu Univ. (Japan)


Published in SPIE Proceedings Vol. 2362:
International Conference on Excitonic Processes in Condensed Matter
Jai Singh, Editor(s)

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