Optical absorption spectrum of Cr3+ ion doped in zinc cesium sulphate hexahydrate |
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Authors: | J Lakshmana Rao K Purandar |
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Institution: | Spectroscopic Laboratories, Department of Physics, S.V. University, Tirupati 517 502, India |
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Abstract: | Optical absorption spectrum of Cr3+ ion doped in zinc cesium sulphate hexahydrate single crystal has been studied both at room and liquid nitrogen temperatures. From the nature and position of the bands a successful interpretation of all the bands could be made assuming octahedral symmetry for the Cr3+ ion in the crystal. The observed bands are assigned to the transitions from the ground 4A2g(F) state to the excited 2Eg(G), 2T1g(G), 4T2g(F) and 4T1g(F) states.The crystal field parameters Dq = 1735 cm?1, B = 635 cm?1 and C = 4.75 B are found to give a good fit to the observed band positions. |
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