Optical absorption spectrum of chromium doped rubidium aluminium sulphate dodecahydrate |
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| Institution: | 1. Research Center of Laser Crystal, Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China;2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China;1. Institute of Solid State Physics and College of Physics and Electronic Science, Shanxi Province Key Laboratory of Microstructure Electromagnetic Functional Materials, Shanxi Datong University, Datong, 037009, China;2. Research Center of Laser Crystal, Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China;1. College of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, PR China;2. College of Science, Beijing Jiaotong University, Beijing, 100044, PR China |
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| Abstract: | Optical absorption spectrum of chromium doped rubidium aluminium sulphate dodecahydrate single crystal is investigated. The electronic spectrum in the UV-VIS region is characteristic of Cr 3+ in trigonal symmetry and vibrational spectrum in the i.r. region is ascribed to the SO 42− and H 2O groups. The following crystal field parameters are evaluated for Cr 3+ in trigonal symmetry.Dq = 1840cm −1, Dσ = 140cm −1, Dτ = 140cm −1, B = 700cm −1 C = 3100cm −1. |
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