Temperature dependence of absorption in photorefractive iron-doped lithium niobate crystals

We present experimental data showing a significant dependence of light absorption on temperature in photorefractive LiNbO3:Fe crystals. The results are successfully explained by assuming that the widths of the Fe2+ absorption bands in the visible and in the infrared spectral region depend on temperature. The findings are of relevance for thermal fixing of holograms. Furthermore, a temperature-induced increase of the infrared absorption is promising for improved infrared recording. (C) 2002 American Institute of Physics.


Published in:
Journal of Applied Physics, 92, 2, 793
Year:
2002
ISSN:
00218979
Keywords:
Other identifiers:
Scopus: 2-s2.0-0037101003
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