Observation of the high-sensitivity plasmonic dipolar antibonding mode of gold nanoantennas in evanescent waves

標題:	Observation of the high-sensitivity plasmonic dipolar antibonding mode of gold nanoantennas in evanescent waves
作者:	Chen, Yi-Hsun Chen, Kuo-Ping Shih, Min-Hsiung Chang, Che-Yuan 照明與能源光電研究所影像與生醫光電研究所 Institute of Lighting and Energy Photonics Institute of Imaging and Biomedical Photonics
公開日期:	21-Jul-2014
摘要:	Plasmonic dipolar antibonding modes of gold nanoantennas are observed in evanescent waves. Comparing with the bonding mode for normal incidence, the use of prism coupling to transfer the energy of incident light to plasmonic resonance in nanoantennas not only has a higher extinction coefficient but also achieves higher sensitivity to the surrounding environment. The sensitivity of the antibonding mode of gold nanoantenna is 4.84 times that of the bonding mode in terms of the figure of merit. (C) 2014 AIP Publishing LLC.
URI:	http://dx.doi.org/10.1063/1.4891573 http://hdl.handle.net/11536/25091
ISSN:	0003-6951
DOI:	10.1063/1.4891573
期刊:	APPLIED PHYSICS LETTERS
Volume:	105
Issue:	3
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