Dynamical Franz-Keldysh effect

被引:197
作者
Jauho, AP
Johnsen, K
机构
[1] Mikroelektronik Centret, Technical University of Denmark, Lyngby, DK-2800
关键词
D O I
10.1103/PhysRevLett.76.4576
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We introduce and analyze the properties of dynamical Franz-Keldysh effect, i.e., the change of density of states, or absorption spectra, of semiconductors under the influence of time-dependent electric fields. In the case of a harmonic time dependence, we predict the occurrence of significant fine structure, both below and above the zero-field band gap, which should be experimentally observable.
引用
收藏
页码:4576 / 4579
页数:4
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