Terahertz radiation in superlattices in moderate electric field

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	Terahertz radiation in superlattices in moderate electric field
	Han, P ; Jin, KJ ; Zhou, YL ; Zhou, QL
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS B
	2006
卷号	20 期号:8 页码:937
关键词	BLOCH OSCILLATIONS GAAS/AL0.3GA0.7AS SUPERLATTICES SEMICONDUCTOR SUPERLATTICE STARK LADDERS EMISSION SPECTROSCOPY LOCALIZATION
ISSN号	0217-9792
通讯作者	Jin, KJ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China.
中文摘要	We have studied the terahertz (THz) radiation in superlattices (SLs) in moderate electric field region (between 12 kV/cm and 25 kV/cm) from both theoretical and experimental aspects in this work. The THz emission intensity has been calculated for three samples of GaAs/Al0.3Ca0.7As SLs by using Kane model. The theoretical results show that the radiation intensity increases until the electric field F achieves a certain value between 14 kV/cm and 16 kV/cm for various samples, and then starts to roll off. The agreement of the calculated results with the experimental data demonstrates that the rolling of THz radiation intensity is due to the competition of field induced localization of wave functions and the increasing of the photon energy in THz radiation with increased electric fields. Furthermore, it is also shown that THz radiation intensity can be affected by the scattering of the randomly distributed Al atoms in the barriers.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/44850]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Han, P,Jin, KJ,Zhou, YL,et al. Terahertz radiation in superlattices in moderate electric field[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2006,20(8):937.
APA	Han, P,Jin, KJ,Zhou, YL,&Zhou, QL.(2006).Terahertz radiation in superlattices in moderate electric field.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,20(8),937.
MLA	Han, P,et al."Terahertz radiation in superlattices in moderate electric field".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 20.8(2006):937.