| 2 | Laser induced broad band anti-Stokes white emission from LiYbF_4 nanocrystals显示文摘Spectroscopic properties of tetragonal LiYbF_4 nanocrystals under high dense NIR excitation at vacuum condition were investigated. White, broad band emission covering whole visible part of the spectrum from LiYbF_4 nanocrystals was observed. Its intensity strongly depended on the excitation power, excitation wavelength and ambient pressure. Temperature of the nanocrystals under 975 nm excitation was determined as a function of excitation power. Strong photo-induced current was observed from LiYbF_4 pallet. The emission kinetic was analyzed. The mechanism of the anti-Stokes white emission was discussed in terms of the laser-induced charge transfer emission from Yb^(2+) states. | L.Marciniak R.Tomala M.Stefanski D.Hreniak W.Strek | 2016 | Journal of Rare Earths2016，34，3： | 2 |
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