典型文献
High-efficiency asymmetric diffraction based on PT-antisymmetry in quantum dot molecules
文献摘要：
We present preparation of asymmetric grating with higher diffraction efficiency in quantum dot molecules by combin-ing the tunneling effect and parity-time antisymmetry.In the presence of tunneling between two quantum dots,the system exhibits the striking PT antisymmetry via spatially modulating the driving field and the dettming with respect to the driven transition.For this reason,the asymmetric grating could be achieved.The results show that the diffraction efficiency can be adjustable via changing the driving intensity,detuning,tunneling strength,and interaction length,and then the high-order diffraction can be reached.The scheme provides a feasible way to obtain the direction-controlled diffraction grating,which can be helpful for optical information processing and realization of controllable optical self-image.
文献关键词：
中图分类号：
作者姓名：
Guangling Cheng;Yongsheng Hu;Wenxue Zhong;Aixi Chen
作者机构：
Department of Applied Physics,East China Jiaotong University,Nanchang 330013,China;Department of Physics,Zhejiang Sci-Tech University,Hangzhou 310018,China
文献出处：
引用格式：
[1]Guangling Cheng;Yongsheng Hu;Wenxue Zhong;Aixi Chen-.High-efficiency asymmetric diffraction based on PT-antisymmetry in quantum dot molecules)[J].中国物理B（英文版）,2022(01):306-312
A类：
dettming
B类：
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AB值：
0.572785
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