红外与毫米波学报2011，Vol.30Issue(6)：503-506,4.
碲镉汞深能级载流子弛豫时间的皮秒泵浦-探测研究
Picosecond pump-probe of carrier relaxation time in deep levels of HgCdTe
马法君 1李志锋 1陈路 1陆卫1
作者信息
- 1. 中国科学院上海技术物理研究所红外物理国家重点实验室,上海200083
- 折叠
摘要
Abstract
The non-equilibrium carrier dynamics in HgCdTe has been studied with picosecond pump-probe measurements. The delay-time dependent differential transmission shows a negative minimum after the absorption saturation maximum, which can be attributed to an additional absorption process because of the deep levels. A rate equation formalism has been employed to model the carrier dynamics. The experimental differential transmission spectrum has been fitted very well with the calculations when two deep level relaxation time constants are introduced, implying two types of the deep levels. The variation of the relaxation time with the pump intensity has also been studied.关键词
碲镉汞/深能级/驰豫时间/泵浦-探测Key words
HgCdTe/ deep levels/ relaxation time/ pump-probe measurement分类
数理科学引用本文复制引用
马法君,李志锋,陈路,陆卫..碲镉汞深能级载流子弛豫时间的皮秒泵浦-探测研究[J].红外与毫米波学报,2011,30(6):503-506,4.
