期刊
IEEE SENSORS JOURNAL
卷 15, 期 10, 页码 5478-5482出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2015.2442276
关键词
Fiber optics sensors; surface plasmon resonance; graphene; micro-optical device
资金
- Ph.D. Programs Foundation through the Ministry of Education, China [20120121120037]
- National Natural Science Foundation of China [61205059]
In this paper, a fiber-optic surface plasmon resonance (SPR) biosensor is presented, in which a sheet of graphene acting as a sensing layer is coated around the gold film. A theoretical study of the proposed fiber-optic biosensor has been carried out by applying four-layer modal, which shows that by incorporating a graphene sensing layer, the sensitivity of the proposed SPR fiber biosensor can be greatly enhanced than the conventional gold film SPR fiber sensors. The relationship between resonance wavelengths and sensitivity of the proposed graphene sensing layer-based SPR fiber biosensor with the number of sensing layer has also been studied.
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