Ultrafast photoexcited cyclotron emission: Contributions from real and virtual excitations

被引：14
|
作者：
Some, D [1 ]
Nurmikko, AV [1 ]
机构：
[1] BROWN UNIV,CTR ADV MAT RES,PROVIDENCE,RI 02912
来源：
PHYSICAL REVIEW B | 1996年 / 53卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.53.R13295
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The coherent cyclotron transients generated upon femtosecond interband photoexcitation of GaAs are studied under different magnetic-field configurations. By varying the excitation wavelength, we are able to discriminate between contributions to the THz emission due to ballistic transport and instantaneous inter-Landau level polarizations.
引用
收藏
页码：13295 / 13298
页数：4
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