2-PHOTON CONFINED-TO-CONTINUUM INTERSUBBAND TRANSITIONS IN THE SEMICONDUCTOR HETEROSTRUCTURES

被引:10
作者
LI, S [1 ]
KHURGIN, JB [1 ]
机构
[1] JOHNS HOPKINS UNIV,DEPT PHYS & ASTRON,BALTIMORE,MD 21218
关键词
D O I
10.1063/1.352822
中图分类号
O59 [应用物理学];
学科分类号
摘要
The two-photon transitions from the confined states to the continuum in the semiconductor quantum wells and superlattices are considered theoretically. Both the two-photon absorption coefficient and the third order nonlinear susceptibility related to it are calculated. The results show that the nonlinear index of refraction as large as 10(-9) cm2/W can be achieved in the important 10 mum region where the absorption is small, opening a possibility of operating nonlinear optical devices in the far infrared domain.
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收藏
页码:4367 / 4369
页数:3
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