Surface plasmon effects excitation from three-pair arrays of silver-shell nanocylinders

Yuan-Fong Chau; Han-Hsuan Yeh; Din Ping Tsai
February 2009
Physics of Plasmas;Feb2009, Vol. 16 Issue 2, pN.PAG
Academic Journal
Surface plasmon effects excitation from the three-pair arrays of silver-shell nanocylinders are investigated numerically by using the finite-element method. Effects from different illumination wavelengths, interparticle distance, interpair distance, and the radii of air hole in nanocylinders are studied. Compared to the three-pair arrays of solid silver cylinder, the near-field optical response of the shell exhibits electric field enhancements and redshift which are found to be strongly influenced by tuning the radius of the air-hole in the nanocylinders.


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