Chinese Optics Letters, 2016, 14 (2): 021602, Published Online: Sep. 21, 2018
Crystal characterization and optical spectroscopy of Eu3+-doped CaGdAlO4 single crystal fabricated by the floating zone method
160.2540 Fluorescent and luminescent materials 300.6170 Spectra 260.1180 Crystal optics 160.4670 Optical materials
Abstract
A highly transparent Eu 3 + -doped CaGdAlO 4 (CGA) single crystal is grown by the floating zone method. The segregation coefficient, x ray diffraction, and x ray rocking curve are detected, and the results reveal that the single crystal is of high quality. The f – f transitions of Eu 3 + in the host lattice are discussed. The D 0 5 – F 7 2 emission transition at 621 nm (red light) is dominant over the D 0 5 – F 7 1 emission transitions at 591 and 599 nm (orange light), agreeing well with the random crystal environment of Eu 3 + ions in a CGA crystal. The decay time of Eu : D 0 5 is measured to be 1.02 ms. All the results show that the Eu:CGA crystal has good optical characterization and promises to be an excellent red- fluorescence material.
Ruijuan Li, Xiaodong Xu, Liangbi Su, Qinglin Sai, Changtai Xia, Qiuhong Yang, Jun Xu, Adam Strzęp, Anita Półkoszek. Crystal characterization and optical spectroscopy of Eu3+-doped CaGdAlO4 single crystal fabricated by the floating zone method[J]. Chinese Optics Letters, 2016, 14(2): 021602.