Growth and laser performance of Ce-doped LiCaAlF6 and LiSr0.8Ca0.2AIF6 single crystals for UV laser applications

Amina Bensalah; Kiyoshi Shimamura; Zhenlin Liu; Nobuhiko Sarukura; Tsuguo Fukuda

doi:10.1117/12.424641

1 May 2001 Growth and laser performance of Ce-doped LiCaAlF₆ and LiSr_0.8Ca_0.2AIF₆ single crystals for UV laser applications

Amina Bensalah, Kiyoshi Shimamura, Zhenlin Liu, Nobuhiko Sarukura, Tsuguo Fukuda

Author Affiliations +

Proceedings Volume 4268, Growth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials; (2001) https://doi.org/10.1117/12.424641
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

Ce-doped LiCAF (Ce:LiCAF), LiSrAlF₆ (Ce:LiSAF) and LiSr_0.8Ca_0.2AlF₆ (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.

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Amina Bensalah, Kiyoshi Shimamura, Zhenlin Liu, Nobuhiko Sarukura, and Tsuguo Fukuda "Growth and laser performance of Ce-doped LiCaAlF₆ and LiSr_0.8Ca_0.2AIF₆ single crystals for UV laser applications", Proc. SPIE 4268, Growth, Fabrication, Devices, and Applications of Laser and Nonlinear Materials, (1 May 2001); https://doi.org/10.1117/12.424641

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