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On-fiber plasmonic interferometer for multi-parameter sensing
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DOI：10.1364/OE.23.010732.png)
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Abstract
En 中文
We demonstrate a novel miniature multi-parameter sensing device based on a plasmonic interferometer fabricated on a fiber facet in the optical communication wavelength range. This device enables the coupling between surface plasmon resonance and plasmonic interference in the structure, which are the two essential mechanisms for multi-parameter sensing. We experimentally show that these two mechanisms have distinctive responses to temperature and refractive index, rendering the device the capability of simultaneous temperature and refractive index measurement on an ultra-miniature form factor. A high refractive index sensitivity of 220 nm per refractive index unit (RIU) and a high temperature sensitivity of -60 pm/ degrees C is achieved with our device. (C) 2015 Optical Society of America
Keywords:
MODAL INTERFEROMETER
REFRACTIVE-INDEX
TEMPERATURE
SENSORS
TECHNOLOGY
ARRAYS
TIP
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