Exciton optical nonlinearity of hydrogenated nanocrystalline silicon films

被引：0
|
作者：
Guo, Z.N. [1 ]
Guo, H.Q. [1 ]
Wang, J.X. [1 ]
Zhang, W.Z. [1 ]
Li, S.C. [1 ]
机构：
[1] Dept. of Applied Phys., Huaqiao Univ., Quanzhou 362011, China
来源：
Guangdianzi Jiguang/Journal of Optoelectronics Laser | 2001年 / 12卷 / 03期
关键词：
Excitons - Hydrogenation - Optical pumping - Silicon - Thin films;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We have investigated the nonlinear optical properties of hydrogenated nanocrystalline silicon (nc-Si:H) films by pump-probe technique. The phenomenon of the saturated absorption of the exciton in the silicon nanoparticle is observed, and the maximum nonlinear refractive index change at 554 nm is about -6.1×10-5. The nonlinear mechanism of optical absorption of the material is discussed.
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页码：219 / 221
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