Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas

Jhen Hong Yang, Kuo-Ping Chen*

*Corresponding author for this work

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

Symmetry-breaking and scattering cancellation were observed in the dark-mode resonance of dipolar gold nanoantennas (NAs) on glass substrates coupled with oblique incidence and total internal reflection. With the assistance of evanescent waves, the coupling efficiency was twice as strong when the incidence angle was larger than the critical angle. The Hamiltonian equation and absorption spectra were used to analyze the hybridization model of symmetric dipolar gold NAs. The antibonding mode could be coupled successfully by both transverse-magnetic (TM) and transverse-electric (TE) polarizations to NAs when the dimers orientation is parallel to the propagation direction of evanescent waves.

原文English
文章編號32194
期刊Scientific reports
6
DOIs
出版狀態Published - 1 九月 2016

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