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	Polarization dependence of absorption in strongly vertically coupled inas/gaas quantum dots for two-color far-infrared photodetector
	Wang, Zhicheng; Chen, Yonghai; Xu, Bo; Liu, Fengqi; Shi, Liwei; Tang, Chenguang; Wang, Zhanguo
刊名	Physica e-low-dimensional systems & nanostructures
	2008
卷号	40期号:3页码:633-636
关键词	Quantum dot Polarization Absorption
ISSN号	1386-9477
DOI	10.1016/j.physe.2007.08.137
通讯作者	Wang, zhicheng(wangzc@semi.ac.cn)
英文摘要	Strongly vertically coupled inas/gaas quantum dots (qds) with modulation doping are investigated, and polarization dependence of two-color absorptions was observed. analysis of photoluminescence (pl) and absorption spectra shows that s-polarized absorptions at. 10.0 and 13.4 mu m, stem from the first excited state e-1 and the second excited state e-2 in the qds to the bound state e-ingaas in the ingaas spacer, respectively, whereas p-polarized absorptions at 10.0 and 8.2 mu m stem from the first excited state e-1 and the ground e-g in the qds to the bound state e-ingaas in the ingaas spacer, respectively. these measurements illustrate that transitions from excited states are more sensitive to normal incidence, which are very important in designing qd infrared detector. (c) 2007 elsevier b.v. all rights reserved.
WOS关键词	MIDDLE-WAVELENGTH
WOS研究方向	Science & Technology - Other Topics ; Physics
WOS类目	Nanoscience & Nanotechnology ; Physics, Condensed Matter
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000253032800035
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2427404
专题	半导体研究所
通讯作者	Wang, Zhicheng
作者单位	Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhicheng,Chen, Yonghai,Xu, Bo,et al. Polarization dependence of absorption in strongly vertically coupled inas/gaas quantum dots for two-color far-infrared photodetector[J]. Physica e-low-dimensional systems & nanostructures,2008,40(3):633-636.
APA	Wang, Zhicheng.,Chen, Yonghai.,Xu, Bo.,Liu, Fengqi.,Shi, Liwei.,...&Wang, Zhanguo.(2008).Polarization dependence of absorption in strongly vertically coupled inas/gaas quantum dots for two-color far-infrared photodetector.Physica e-low-dimensional systems & nanostructures,40(3),633-636.
MLA	Wang, Zhicheng,et al."Polarization dependence of absorption in strongly vertically coupled inas/gaas quantum dots for two-color far-infrared photodetector".Physica e-low-dimensional systems & nanostructures 40.3(2008):633-636.

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