Optical Absorption on Cubic β-PbF2 Crystals
REN Guo-Hao, SHEN Ding-Zhong, WANG Shao-Hua, YIN Zhi-Wen
Shanghai Institute of Ceramics, Chinese Academy of Sciences,
Shanghai 200050
Optical Absorption on Cubic β-PbF2 Crystals
REN Guo-Hao;SHEN Ding-Zhong;WANG Shao-Hua;YIN Zhi-Wen
Shanghai Institute of Ceramics, Chinese Academy of Sciences,
Shanghai 200050
关键词 :
78.40.-q ,
61.72.-y
Abstract : The transmission spectra of cubic β-PbF2 crystals grown by non-vacuum Bridgman method were measured with a spectrophotometer. It was found that there are several optical absorption bands peaking at 300 nm, 390-400 nm, as well as 460 nm. According to composition analysis, doping and annealing experiments, It is suggested that the absorption at 300 nm originate from the electron transition of Ce ions from 4f → 5d. The absorption at 390-400 nm may result from the color centers related to oxygen impurities. In addition, the sample recrystallized from the colored β-PbF2 crystal exhibits a new absorption band at 460 nm, which might be caused by trace lead vacancies.
Key words :
78.40.-q
61.72.-y
出版日期: 2001-07-01
:
78.40.-q
(Absorption and reflection spectra: visible and ultraviolet)
61.72.-y
(Defects and impurities in crystals; microstructure)
引用本文:
REN Guo-Hao;SHEN Ding-Zhong;WANG Shao-Hua;YIN Zhi-Wen. Optical Absorption on Cubic β-PbF2 Crystals[J]. 中国物理快报, 2001, 18(7): 976-978.
REN Guo-Hao, SHEN Ding-Zhong, WANG Shao-Hua, YIN Zhi-Wen. Optical Absorption on Cubic β-PbF2 Crystals. Chin. Phys. Lett., 2001, 18(7): 976-978.
链接本文:
https://cpl.iphy.ac.cn/CN/
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https://cpl.iphy.ac.cn/CN/Y2001/V18/I7/976
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