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Systematic study of finite-difference frequency-domain method for spontaneous emission in a two-dimensional environment

作     者:Qi, Jian-Nan Huang, Zhi-Xiang Wang, Han-Lin Wu, Xian-Liang Chu, Jing-Yang Zhou, Li 

作者机构:Key Laboratory of Intelligent Computing and Signal Processing Anhui University Hefei 230039 China Department of Physics and Electronic Engineering Hefei Normal University Hefei 230061 China 

出 版 物:《Guangzi Xuebao/Acta Photonica Sinica》 (Guangzi Xuebao)

年 卷 期:2014年第43卷第1期

核心收录:

主  题:Spontaneous emission 

摘      要:The improvement of the efficiency of spontaneous emission will give great help to the research and manufacture of optoelectronic devices such as single photon resource. The local density of elestromagnetic states was calculated which is represented by the electric dyadic Green s function through the finite-difference frequency-domain method, the local density of states and the spontaneous emission rate in different metal materials, structures and wavelengths were analyzed, and the intrinsic physical mechanism was explored. The results show that the spontaneous emission rate of atoms can be greatly enhanced when surface plasmon polariton couple to the emiter, and different structure and the refractive indices of materials have different improvement of spontaneous emission rate. This research can provide important reference for the manufacture and optimization of optoelectronic devices.

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