22 October 2010 Effective local-field confinement of silver nanoparticle dimer arrays
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Abstract
The optical properties of silver spherical nanoparticle dimer arrays with various incident wavelength are investigated by using the finite difference time domain method. Due to surface plasmon resonance, in the arrays of strongly coupled Ag nanoparticles, the energy of incident light is effectively confined in the gap of penultimate dimer under the influence of surface plasmonic reflection at the end of array structure. Furthermore, the suitable radius of the nanoparticles can be chosen to obtain the resonant peak at the optional position in the range of visible-nearinfrared wavelength. The above effects can be utilized to design effective functional end-structures in integrated optics.
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Li Yao, Li Yao, Xufeng Li, Xufeng Li, Tiangang Yang, Tiangang Yang, Shi Pan, Shi Pan, Maodu Chen, Maodu Chen, "Effective local-field confinement of silver nanoparticle dimer arrays", Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76584J (22 October 2010); doi: 10.1117/12.865815; https://doi.org/10.1117/12.865815
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