Photoluminescence and up-conversion of Er3+ in tetragonal NaBi(XO4)2, X=Mo or W, scheelites Export

@article{citeulike:2526186, abstract = {Er doped NaBi(XO4)2, X=Mo or W, single crystals with tetragonal structure have been grown with optical quality by the Czochralski method. Er concentrations up to 1.4x1020 cm-3 and 1.3x1020 cm-3 have been attained in Mo and W compounds respectively. 4S3/2-->4I15/2 emission of Er3+ has been achieved at room temperature by up-conversion exciting the 4I11/2 or 4I9/2 multiplets. This green emission is strongly polarised parallel to the crystallographic c-axis. The efficiency of the up-conversion process in tetragonal NaBi(MoO4)2 and NaBi(WO4)2 crystals are similar and also similar to that found in monoclinic KGd(WO4)2 crystal. The slope of the logarithmic dependence between up-converted and pump intensities suggests a two-photon excitation process. A schematic model of the up-conversion process is outlined.}, author = {Rico, M. and Volkov, V. and Zaldo, C.}, citeulike-article-id = {2526186}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S0925-8388(01)01149-5}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6TWY-43BXWKG-89/2/323b9b813f428673dc6d16a8bc06511c}, day = {12}, doi = {10.1016/S0925-8388(01)01149-5}, journal = {Journal of Alloys and Compounds}, keywords = {jac, kgw, ngw}, month = {July}, pages = {806--810}, posted-at = {2008-03-13 13:05:57}, priority = {2}, title = {Photoluminescence and up-conversion of Er3+ in tetragonal NaBi(XO4)2, X=Mo or W, scheelites}, url = {http://dx.doi.org/10.1016/S0925-8388(01)01149-5}, volume = {323-324}, year = {2001} }

TY - JOUR ID - citeulike:2526186 L3 - citeulike-article-id:2526186 N2 - Er doped NaBi(XO4)2, X=Mo or W, single crystals with tetragonal structure have been grown with optical quality by the Czochralski method. Er concentrations up to 1.4x1020 cm-3 and 1.3x1020 cm-3 have been attained in Mo and W compounds respectively. 4S3/2-->4I15/2 emission of Er3+ has been achieved at room temperature by up-conversion exciting the 4I11/2 or 4I9/2 multiplets. This green emission is strongly polarised parallel to the crystallographic c-axis. The efficiency of the up-conversion process in tetragonal NaBi(MoO4)2 and NaBi(WO4)2 crystals are similar and also similar to that found in monoclinic KGd(WO4)2 crystal. The slope of the logarithmic dependence between up-converted and pump intensities suggests a two-photon excitation process. A schematic model of the up-conversion process is outlined. JF - Journal of Alloys and Compounds EP - 810 TI - Photoluminescence and up-conversion of Er3+ in tetragonal NaBi(XO4)2, X=Mo or W, scheelites VL - 323-324 SP - 806 KW - jac KW - kgw KW - ngw AU - Rico, M AU - Volkov, V AU - Zaldo, C PY - 2001/07/12/ UR - http://dx.doi.org/10.1016/S0925-8388(01)01149-5 ER -