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Plasmon-mediated resonance energy transfer by metallic nanorods

Yi-Cong Yu, Jia-Ming Liu, Chong-Jun Jin and Xue-Hua Wang*

Author Affiliations

State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China

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Nanoscale Research Letters 2013, 8:209  doi:10.1186/1556-276X-8-209

Published: 3 May 2013


We investigate the enhancement of the resonance energy transfer rate between donor and acceptor associated by the surface plasmons of the Ag nanorods on a SiO2 substrate. Our results for a single nanorod with different cross sections reveal that the cylinder nanorod has the strongest ability to enhance the resonance energy transfer rate. Moreover, for donor and acceptor with nonparallel polarization directions, we propose simple V-shaped nanorod structures which lead to the remarkable resonance energy transfer enhancement that is ten times larger than that by the single nanorod structure. We demonstrate that these structures have good robustness and controllability. Our work provides a way to improve the resonance energy transfer efficiency in integrated photonic devices.

78.67.Qa, 73.20.Mf, 42.50.Ex