Controllable four-wave mixing based on quantum dot-cavity coupling system |
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Authors: | Hong-Wu Xing Bin Chen Li-Li Xing Jian-Bin Chen Hai-Bin Xue Kang-Xian Guo |
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Institution: | 1.Department of Physics, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;2.Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan 030024, China;3.Department of Physics, School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China |
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Abstract: | We theoretically study the four-wave mixing(FWM) response in a quantum dot-cavity coupling system, where a two-level quantum dot(QD) is placed in an optical cavity while the cavity mode is coupled to the nanomechanical resonator via radiation pressure. The influences of the QD-cavity coupling strength, the Rabi coupling strength of the QD, and the power of the pump light on the FWM intensity are mainly considered. The numerical results show that the FWM intensity in this hybrid system can be significantly enhanced by increasing the QD-cavity coupling strength. In addition, the FWM intensity can be effectively modulated by the Rabi coupling strength and the pump power. Furthermore, the effects of the cavity decay rate and the cavitypump detuning on the FWM signal are also explored. The obtained results may have potential applications in the fields of quantum optics and quantum information science. |
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Keywords: | four-wave mixing quantum dot-cavity coupling system input?output relation |
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