標題: Evanescent Wave-Assisted Symmetry Breaking of Gold Dipolar Nanoantennas
作者: Yang, Jhen-Hong
Chen, Kuo-Ping
光電系統研究所
影像與生醫光電研究所
Institute of Photonic System
Institute of Imaging and Biomedical Photonics
公開日期: 1-九月-2016
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.
URI: http://dx.doi.org/10.1038/srep32194
http://hdl.handle.net/11536/134074
ISSN: 2045-2322
DOI: 10.1038/srep32194
期刊: SCIENTIFIC REPORTS
Volume: 6
顯示於類別:期刊論文