Efficient spatiotemporal-vortex four-wave mixing in a semiconductor nanostructure

被引:49
|
作者
Wang, Zhiping [1 ,2 ]
Zhang, Yufeng [1 ,2 ]
Paspalakis, Emmanuel [3 ]
Yu, Benli [1 ,2 ]
机构
[1] Anhui Univ, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China
[2] Anhui Univ, Key Lab Opto Elect Informat Acquisit & Manipulat, Minist Educ, Hefei 230601, Peoples R China
[3] Univ Patras, Sch Nat Sci, Mat Sci Dept, Patras 26504, Greece
基金
中国国家自然科学基金;
关键词
We propose a scheme to demonstrate spatiotemporal-vortex four-wave mixing (FWM) in an asymmetric semiconductor double quantum-well nanostructure. It is found that the orbital-angular-momentum (OAM) phase is transferred entirely from a unique OAM mode to the FWM field. Interestingly; by adjusting the detuning or the intensity of a control field; one can effectively modulate the phase and intensity of the FWM field. Also; we perform the superposition modes created by the interference between the FWM field and a same-frequency Laguerre-Gaussian mode; which show many interesting properties. Moreover; the conversion efficiency and quality of the output FWM field are studied. It is shown that the generated FWM mode has a maximum fidelity of approximately 100%. Our result may find potential applications in fundamental research and quantum technologies based on OAM light in solids. © 2020 American Physical Society;
D O I
10.1103/PhysRevA.102.063509
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose a scheme to demonstrate spatiotemporal-vortex four-wave mixing (FWM) in an asymmetric semiconductor double quantum-well nanostructure. It is found that the orbital-angular-momentum (OAM) phase is transferred entirely from a unique OAM mode to the FWM field. Interestingly, by adjusting the detuning or the intensity of a control field, one can effectively modulate the phase and intensity of the FWM field. Also, we perform the superposition modes created by the interference between the FWM field and a same-frequency Laguerre-Gaussian mode, which show many interesting properties. Moreover, the conversion efficiency and quality of the output FWM field are studied. It is shown that the generated FWM mode has a maximum fidelity of approximately 100%. Our result may find potential applications in fundamental research and quantum technologies based on OAM light in solids.
引用
收藏
页数:8
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