Characteristics and mechanism analysis of Fano resonances in <inline-formula> <img src="cpb_26_12_127301_ieqn001.gif"/> </inline-formula>-shaped gold nano-trimer

Characteristics and mechanism analysis of Fano resonances in

-shaped gold nano-trimer

Zhong Han-Hua¹, Zhou Jian-Hong², Gu Chen-Jie¹, Wang Mian¹, Fang Yun-Tuan³, Xu Tian⁴, Zhou Jun^{1, †}

(color online) (a) Extinction spectra for different values of coupling gap size d between the nanorice and the nanorod, and (b) extinction spectra for different distances between two nanorice g, the right upper inset shows the at the resonance peak with g=180 nm, and the right bottom inset displays the at the resonance peak with g=300 nm.