Intensity-dependent absorption and its modelling in infrared sensitive rhodium-doped BaTiO3

被引:16
作者
Kaczmarek, M
Ross, GW
Eason, RW
Damzen, MJ
RamosGarcia, R
Garrett, MH
机构
[1] UNIV SOUTHAMPTON,DEPT PHYS,SOUTHAMPTON SO17 1BJ,HANTS,ENGLAND
[2] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,BLACKETT LAB,LONDON SW7 2BZ,ENGLAND
[3] DELTRON CRYSTAL IND INC,DOVER,NJ 07801
关键词
D O I
10.1016/0030-4018(96)00046-6
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We investigate the intensity-dependent absorption coefficient of photorefractive Rh:BaTiO3 from the maximum (633 nm) to the near infra-red end (1.06 mu m) of this crystal's sensitivity. A numerical photorefractive model, incorporating dual-wavelength illumination and a secondary photorefractive centre, gives good agreement with experiment and shows that such a two-centre model is sufficient to explain the results obtained in the visible and infrared wavelength region.
引用
收藏
页码:175 / 184
页数:10
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