A novel BaY2F8 crystal doped with thulium ions is grown and extensively investigated. Owing to the large number of vibronic levels and to a favorable electron-phonon coupling, extremely wide absorption and emission bands around 1.9 mu m are observed. A room-temperature Tm:BaY2F8 laser tunable over a 210-nm interval, from 1849 to 2059 nm, is demonstrated. (c) 2005 Optical Society of America.
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Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Kurosawa, Shunsuke
Yanagida, Takayuki
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Tohoku Univ, New Ind Creat Hatchery Ctr NICHe, Aoba Ku, Sendai, Miyagi 9808579, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Yanagida, Takayuki
Pejchal, Jan
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Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
ASCR, Inst Phys, Prague 16253 6, Czech RepublicTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Pejchal, Jan
Fukuda, Kentaro
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Tokuyama Cooperat, Chiyoda Ku, Tokyo 1008983, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Fukuda, Kentaro
Kawaguchi, Noriaki
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Tokuyama Cooperat, Chiyoda Ku, Tokyo 1008983, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Kawaguchi, Noriaki
Ishizu, Sumito
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Tokuyama Cooperat, Chiyoda Ku, Tokyo 1008983, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Ishizu, Sumito
Suyama, Toshihisa
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Tokuyama Cooperat, Chiyoda Ku, Tokyo 1008983, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Suyama, Toshihisa
Nakagawa, Masanori
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Tokuyama Cooperat, Chiyoda Ku, Tokyo 1008983, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Nakagawa, Masanori
Yokota, Yuui
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Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
Yokota, Yuui
Nikl, Martin
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ASCR, Inst Phys, Prague 16253 6, Czech RepublicTohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan