Variation of Dynamic Fano Resonances in Semiconductor Superlattices Driven by Dc and THz Fields

被引：0

作者：

Je, Koo Chul ^{[1
]}

机构：

[1] Anyang Univ, Dept Phys, Coll Liberal Arts & Sci, Anyang 708113, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2010年 / 56卷 / 03期

关键词：

Dynamic Fano resonance; THz fields; Miniband collapse; Dynamical localization; Dynamical Stark ladders; OPTICAL-ABSORPTION; QUANTUM-WELLS; LOCALIZATION; EXCITONS; STATES;

D O I：

10.3938/jkps.56.801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe the dynamic Fano resonances in a biased three-dimensional semiconductor super-lattice driven by combined dc and THz fields. The Fano resonances on the Wannier Stark ladders are dominantly changed by the THz field via the band collapse phenomenon. The Fano coupling matrix is closely related to the separated energy distance between the two types of exciton resonances produced by the dc and the THz fields. The dynamic Fano coupling strength increases as the exciton resonance induced by the THz field approaches the Wannier exciton states.

引用

页码：801 / 804

页数：4

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