Temperature dependence of absorption in photorefractive iron-doped lithium niobate crystals
نویسندگان
چکیده
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 Fe 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. © 2002 American Institute of Physics. @DOI: 10.1063/1.1486257#
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