Very High Photorefractive Gain in Two-Beam Coupling
with Thin Iron-Doped LiNbO3 Crystal
ZHANG Jingwen, SUN Wanjun, BIAN Shaoping, XU Kebin, SUN Guangyao, LI Minghua*, XU Yuheng*
Department of Applied Physics, Harbin Institute of Technology, Harbin 150006
*Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150006
Very High Photorefractive Gain in Two-Beam Coupling
with Thin Iron-Doped LiNbO3 Crystal
Department of Applied Physics, Harbin Institute of Technology, Harbin 150006
*Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150006
Abstract： The largest exponential gain coefficient ( Γ=250 cm-1), to our knowledge, is obtained in thin (d=0.20mm) iron-doped LiNbO3 crystal. The dependence of two-beam coupling coefficients on beam crossing angle are measured and compared in two samples fabricated from the same material with different values of thickness. The explanation based on light climbing effect is given.
ZHANG Jingwen;SUN Wanjun;BIAN Shaoping;XU Kebin;SUN Guangyao;LI Minghua*;XU Yuheng*. Very High Photorefractive Gain in Two-Beam Coupling
with Thin Iron-Doped LiNbO3 Crystal
[J]. 中国物理快报, 1993, 10(4): 227-230.
ZHANG Jingwen, SUN Wanjun, BIAN Shaoping, XU Kebin, SUN Guangyao, LI Minghua*, XU Yuheng*. Very High Photorefractive Gain in Two-Beam Coupling
with Thin Iron-Doped LiNbO3 Crystal
. Chin. Phys. Lett., 1993, 10(4): 227-230.
1993, Vol. 10 
