The influence of Rh doping on the light-induced properties of Bi 4Ge3O12 single crystals

V. Marinova*, D. Petrova, Shiuan-Huei Lin, M. L. Hsieh, Ken-Yuh Hsu

*此作品的通信作者

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The influence of different doping concentrations of rhodium on the light-induced and holographic properties of BGO crystal is investigated. It is found that Rh addition generates sufficient density of traps for photoinduced charge carriers such that holographic gratings are successfully recorded in the blue-green spectral range. The measured steady state diffraction efficiency at 514nm is 0.14%, which corresponds to a refractive index modulation of Δn∼1.5 × 10-6 for higher Rh concentration. A photochromic effect and nonlinear dependence of photoconductivity on light intensity are observed indicating deep level and shallow level contributions to the charge transport mechanism of Rh-doped BGO.

原文English
文章編號015201
期刊Journal of Optics A: Pure and Applied Optics
11
發行號1
DOIs
出版狀態Published - 8 四月 2009

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