FAR-INFRARED PICOSECOND TIME-RESOLVED MEASUREMENT OF THE FREE-INDUCTION DECAY IN GAAS-SI

被引：28
|
作者：
PLANKEN, PCM [1 ]
VANSON, PC [1 ]
HOVENIER, JN [1 ]
KLAASSEN, TO [1 ]
WENCKEBACH, WT [1 ]
MURDIN, BN [1 ]
KNIPPELS, GMH [1 ]
机构：
[1] FOM,INST PLASMA PHYS RIJNHUIZEN,3430 BE NIEUWEGEIN,NETHERLANDS
来源：
PHYSICAL REVIEW B | 1995年 / 51卷 / 15期
关键词：
D O I：
10.1103/PhysRevB.51.9643
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By measuring changes in the photoconductivity induced by picosecond far-infrared pulse pairs from a free-electron laser, we have time resolved the free-induction decay of the 1s-210 and 1s-2p+ Si-shallow-donor transitions in bulk GaAs. The method frees us from the problem of measuring the optical emission of the transitions and allows us to obtain their dephasing times. We expect to be able to use the same method in the future to measure other coherent phenomena in these systems, such as photon echoes. © 1995 The American Physical Society.
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收藏
页码：9643 / 9647
页数：5
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