Journal
MEASUREMENT SCIENCE AND TECHNOLOGY
Volume 28, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6501/aa7c27
Keywords
optical fiber sensors; plasmonic resonance; optrode; refractometric measurements; phase interrogation
Funding
- National Funds through FCT-Fundacao para a Ciencia e a Tecnologia [PTDC/FIS/119027/2010]
- Fundação para a Ciência e a Tecnologia [PTDC/FIS/119027/2010] Funding Source: FCT
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This work reports the theoretical investigation of optical fiber surface plasmon resonance sensors incorporating bimetallic layer combinations. Different metals like silver, gold, copper, and aluminum are considered to investigate the refractometric sensing properties of tapered and tip optrode phase-interrogated optical fiber plasmonic sensor structures. It is shown that the gold-silver combination, coupled to a tip optrode layout, is capable of maximizing the resolution and operation range of these sensing structures for environmental refractive index measurement.
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