Raman spectra of undoped and uranium doped CaF2 single crystals
Chinese Optics Letters, Vol. 3, Issue 4, pp. 219-221 (2005)
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Abstract
Raman scattering experiments for nominally pure and uranium doped CaF2 single crystals were presented. In all crystals, the Raman active T_(2g) vibration mode of CaF2 was observed, whose frequency shift and full-width at half-maximum (FWHM) broadening correspond well with defects and impurities in CaF2 lattice. Additional Raman peaks develop in nominally pure CaF2 with high etch pits density and U^(6+):CaF2 crystals. Part of additional Raman peaks in the experimental results, which are assumed due to vibration modes from F- interstitials and vacancies, are in well agreement with the theoretical predications by employing the Green-function formulation.
© 2005 Chinese Optics Letters
OCIS Codes
(160.4670) Materials : Optical materials
(300.6450) Spectroscopy : Spectroscopy, Raman
Citation
Liangbi Su, Jun Xu, Weiqiao Yang, Xiongwei Jiang, and Yongjun Dong, "Raman spectra of undoped and uranium doped CaF2 single crystals," Chin. Opt. Lett. 3, 219-221 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-4-219
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