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Proceedings Paper

Growth and laser performance of Ce-doped LiCaAlF6 and LiSr0.8Ca0.2AIF6 single crystals for UV laser applications
Author(s): Amina Bensalah; Kiyoshi Shimamura; Zhenlin Liu; Nobuhiko Sarukura; Tsuguo Fukuda
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Paper Abstract

Ce-doped LiCAF (Ce:LiCAF), LiSrAlF6 (Ce:LiSAF) and LiSr0.8Ca0.2AlF6 (Ce:LiSCAF) single crystals were grown by the Czochralski technique as ultraviolet, tunable, solid- state laser media. Optical characterization and Laser activity were investigated. Crystal growth was performed in Czochralski system (CZ) under an atmosphere of CF4 with previous treatment in high vacuum (approximately equals 10-2 Pa). Under such conditions, we succeeded to grow Ce:LiCAF, Ce:LiSAF and Ce:LiSCAlF (18 mm in diameter and 60 mm in length) single crystals. Laser rods were cut from the above mentioned crystal boules. The laser resonator was established by a flat high reflector and a flat output coupler. The forth harmonic of a Q-switched Nd:YAG laser was used as the pumping source. Laser oscillations at around 290 nm were measured. 60 mJ pulses were generated directly from the Ce:LiCAF crystal. Gain has been observed for the Ce:LiSCAlF crystal and laser oscillation was confirmed.

Paper Details

Date Published: 1 May 2001
PDF: 8 pages
Proc. SPIE 4268, Growth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials, (1 May 2001); doi: 10.1117/12.424641
Show Author Affiliations
Amina Bensalah, Tohoku Univ. (Japan)
Kiyoshi Shimamura, Tohoku Univ. (Japan)
Zhenlin Liu, Institute for Molecular Science (United States)
Nobuhiko Sarukura, Institute for Molecular Science (Japan)
Tsuguo Fukuda, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4268:
Growth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials
Jeffrey W. Pierce; Kathleen I. Schaffers; Kathleen I. Schaffers, Editor(s)

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