期刊
CHINESE PHYSICS LETTERS
卷 30, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/30/5/057301
关键词
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资金
- National Natural Science Foundation of China [61178004]
- Tianjin Natural Science Foundation [12JCQNJC01100]
- Doctoral Program of Higher Education of China [20110031120005]
- Program for Changjiang Scholars and Innovative Research Team in Nankai University
A novel symmetric plasmonic structure consisting of a metal-insulator-metal waveguide and a rectangular cavity is proposed to investigate Fano resonance performance by adjusting the size of the structure. The Fano resonance originates from the interference between a local quadrupolar and a broad spectral line in the rectangular cavity. The tuning of the Fano profile is realized by changing the size of the rectangular cavity. The nanostructure is expected to work as an excellent plasmonic sensor with a high sensitivity of about 530 nm/RIU and a figure of merit of about 650.
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