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Spectroscopic properties of ytterbium doped KLu(WO_4)_2

Spectroscopic properties of ytterbium doped KLu(WO_4)_2
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摘要 Monoclinic Yb3+-doped KLu(WO4)2 (Yb:KLuW) crystal with large sizes was grown by top-seeded solution growth (TSSG) method. Room-temperature absorption and fluorescence spectra were measured. The ground-state energy-level splitting was 562 cm–1. The absorption cross section, peak emission cross section as well as the minimum inversion fraction ?min and the minimum absorbed pump intensity Imin were calculated. The measured emission lifetime was 0.676 ms and the emission spectral bandwidth (FWHM) was up to 55 nm. In comparison with established laser crystals the results suggested that this crystal has potential application in efficient tunable and femtosecond laser operation. Monoclinic Yb3+-doped KLu(WO4)2 (Yb:KLuW) crystal with large sizes was grown by top-seeded solution growth (TSSG) method. Room-temperature absorption and fluorescence spectra were measured. The ground-state energy-level splitting was 562 cm–1. The absorption cross section, peak emission cross section as well as the minimum inversion fraction ?min and the minimum absorbed pump intensity Imin were calculated. The measured emission lifetime was 0.676 ms and the emission spectral bandwidth (FWHM) was up to 55 nm. In comparison with established laser crystals the results suggested that this crystal has potential application in efficient tunable and femtosecond laser operation.
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2011年第4期359-362,共4页 稀土学报(英文版)
基金 supported by Program for New Century Excellent Talents in University (NCET-08-0722)
关键词 Yb:KLuW crystals TSSG growth method spectra properties rare earths Yb:KLuW crystals TSSG growth method spectra properties rare earths
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