1. Spontaneous and stimulated emission in Sm3+-doped YAl3(BO3)4 single crystal.
- Author
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Ryba-Romanowski, Witold, Lisiecki, Radosław, Beregi, Elena, and Martín, I.R.
- Subjects
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ALUMINUM compounds , *STIMULATED emission , *DOPING agents (Chemistry) , *SINGLE crystals , *HIGH temperature metallurgy , *METAL absorption & adsorption - Abstract
Single crystals of YAl 3 (BO 3 ) 4 doped with trivalent samarium were grown by the top-seeded high temperature solution method and their absorption and emission spectra were investigated. Optical pumping into prominent absorption band around 405 nm feeds the 4 G 5/2 metastable level giving rise to intense visible luminescence distributed in several spectral lines with the most intense line around 600 nm characterized by a branching ratio of 0.42 and peak emission cross section of 0.25×10 −20 cm 2 . Optical amplification at 600 nm with a gain coefficient of 2.9 cm −1 was achieved during a pump-and-probe experiment. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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