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	Single photon source
	SCHLIWA, ANDREI; STOCK, ERIK; BIMBERG, DIETER
	2012-04-03
著作权人	TECHNISCHE UNIVERSITAT BERLIN
专利号	US8149888
国家	美国
文献子类	授权发明
其他题名	Single photon source
英文摘要	An embodiment of the invention relates to a single-photon source for emitting single photons, comprising a cavity having a first mirror and a second mirror and exhibiting a longitudinal resonance frequency between the first and second mirror; at least one quantum dot arranged inside said cavity, said quantum dot being strain-dependent and configured to generate radiation at a strain-dependent radiation frequency; a device capable of exciting the quantum dot to generate radiation; a piezoelectric crystal being arranged outside the cavity and mechanically coupled to the second mirror's outer surface, said piezoelectric crystal configured to receive a control voltage and capable of applying either a laterally tensile and vertically compressive strain to both the cavity and the quantum dot, or a laterally compressive and vertically tensile strain to both the cavity and the quantum dot, depending on the control voltage's polarity; wherein, in response to said strain, the resonance frequency and the radiation frequency shift in opposite directions.
公开日期	2012-04-03
申请日期	2010-09-27
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/35612]
专题	半导体激光器专利数据库
作者单位	TECHNISCHE UNIVERSITAT BERLIN
推荐引用方式 GB/T 7714	SCHLIWA, ANDREI,STOCK, ERIK,BIMBERG, DIETER. Single photon source. US8149888. 2012-04-03.

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