Start Reading Plasmons: 1-dim Fanolike resonance due to plasmon excitation in linear chains of metal bumps
English Chinese (Simplified) Danish Dutch French German Italian Norwegian Russian Spanish Swedish
Fanolike resonance due to plasmon excitation in linear chains of metal bumps

15

Dec

2011

Xiao-gang Yin, Cheng-ping Huang, Qian-jin Wang, Wan-xia Huang, Lin Zhou, Chao Zhang, and Yong-yuan Zhu

Optics Express, Vol. 19, Issue 11, pp. 10485-10493 (2011)


http://dx.doi.org/10.1364/OE.19.010485

Abstract

We report the transmission anomaly in a modified slit grating, which is dressed, on the slit sidewalls, with the linear chains of metal bumps. An asymmetric lineshape, which is characteristic of the Fano resonance, has been found in a narrow frequency range of the spectrum. The effect can be attributed to the interference between nonresonant background transmission and resonant plasmonic wave excitation in the linear chains. The dispersion of chain plasmon mode has been suggested, enabling the dynamic tuning of spectral position of the Fano effect.