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   Study of the Quantum Efficiency of Semiconductor Quantum Dot Pulsed Micro-Laser  
نویسنده Mohebbifar Mohammad Reza
منبع Journal Of Optoelectronical Nanostructures - 2021 - دوره : 6 - شماره : 1 - صفحه:59 -70
چکیده    The interaction of the cavity electromagnetic field with the two-level emitter is described by cavity quantum electrodynamics (cqed). a pulsed micro-laser is an array of semiconductor quantum dots (qds) embedded in an optical micro-cavity. this is one of the basic tools of quantum information technology. in this study, the energy eigenvalues variations and the quantum efficiency of a micro-laser system includes a qd with a decay rate of 0.8μev embedded in the different micro-cavities, were investigated. the results show that with the increasing coherent interaction rate of micro-laser system, the energy eigenvalues variations of this optical system also increase. the quantum efficiency for this nano-optical system was studied. the results show the smaller micro-cavity decay rate, the higher quantum efficiency at smaller coherent interaction rate. then, the optimal value of the micro-cavity decay rate was obtained in order to achieve the maximum quantum efficiency. the calculation results showed that the highest quantum efficiency occurs for optical parameters γa=0.8μev, g=95μev, γc=177.7μev, and ηmax=0.991.
کلیدواژه Quantum Efficiency ,Micro-Laser ,Quantum Dot ,Micro-Cavity ,Energy Eigenvalues
آدرس Malayer University, Faculty Of Science, Department Of Physics, Iran
پست الکترونیکی mmohebifar@gmail.com

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