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Proceedings Paper

Room-temperature laser oscillation by F2+ color centers in LiF crystal
Author(s): Taiju Tsuboi
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Paper Abstract

Color centers are lattice vacancies which are trapping one or more electrons or holes in ionic crystals. Some of them have been known to be high-gain active materials in tunable solid state lasers. However, most color centers (e.g. FA(II) color center in KC1 crystal) give rise to laser oscillation when the laser-active crystals are cooled with liquid nitrogen [1]. For practical use, it is requested to be able to operate the laser at room temperature (RT) because it is easy to adjust the optical alignment and it is unnecessary to maintain the crystals at liquid nitrogen temperature not only during operation but also after operation to avoid the thermal bleaching of the color centers. The RT stable color center lasers have been achieved predominantly using F2, F2, F2 and F3 color centers in LiF[2,3,4]. Although the RT LiF:F2 color center laser oscillation has been studied by several scientists, all the lasing characteristics have not been clarified.

Paper Details

Date Published: 19 July 1999
PDF: 2 pages
Proc. SPIE 3749, 18th Congress of the International Commission for Optics, (19 July 1999); doi: 10.1117/12.354862
Show Author Affiliations
Taiju Tsuboi, Kyoto Sangyo Univ. (Japan)

Published in SPIE Proceedings Vol. 3749:
18th Congress of the International Commission for Optics
Alexander J. Glass; Joseph W. Goodman; Milton Chang; Arthur H. Guenther; Toshimitsu Asakura, Editor(s)

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