Vacuum-ultraviolet spectroscopy and quantum cutting for $\mathrm{Gd^{3+}}$ in $\mathrm{LiYF_4}$
Vacuum-ultraviolet spectroscopy and quantum cutting for $\mathrm{Gd^{3+}}$ in $\mathrm{LiYF_4}$
A systematic spectroscopic study of the 4f7 energy levels of Gd3+ in LiYF4 in the vacuum-ultraviolet spectral region (50000–70000cm−1) is reported. Using energy-level calculations, all observed spectral lines could be assigned to free-ion term symbols (including term symbols with unusually high L and J,e.g., a 2Q23/2 level around 67000cm−1). From the 6GJ levels around 50000cm−1 quantum cutting (or two-photon luminescence, photon-cascade emission) is observed: the emission of a red photon due to the 6GJ→6PJ transition is followed by the emission of an ultraviolet photon due to the 6PJ→8S7/2transition.
Physical review / B 56(21), 13841 - 13848 (1997). doi:10.1103/PhysRevB.56.13841
Published by Inst., Woodbury, NY
info:eu-repo/classification/ddc/530, 530
info:eu-repo/classification/ddc/530, 530
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