Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements
AbstractWe propose and theoretically demonstrate a bottle resonator sensor with a nanoscale altitude and with alength several of hundreds of microns made on the top of the fiber with a radius of tens microns for refractive index and temperature sensor applications. The whispering gallery modes (WGMs) in the resonators can be excited with a taper fiber placed on the top of the resonator. These sensors can be considered as an alternative to fiber Bragg grating (FBG) sensors.The sensitivity of TM-polarized modes is higher than the sensitivity of the TE-polarized modes, but these values are comparable and both polarizations are suitable for sensor applications. The sensitivity ~150 (nm/RIU) can be reached with abottle resonator on the fiber with the radius 10 μm. It can be improved with theuse of a fiber with a smaller radius. The temperature sensitivity is found to be ~10 pm/K. The temperature sensitivity can decrease ~10% for a fiber with a radius rco = 10 μm instead of a fiber with a radius rco = 100 μm. These sensors have sensitivities comparable to FBG sensors. A bottle resonator sensor with a nanoscale altitude made on the top of the fiber can be easily integrated in any fiber scheme. View Full-Text
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Nemova, G.; Kashyap, R. Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements. Sensors 2016, 16, 87.
Nemova G, Kashyap R. Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements. Sensors. 2016; 16(1):87.Chicago/Turabian Style
Nemova, Galina; Kashyap, Raman. 2016. "Silica Bottle Resonator Sensor for Refractive Index and Temperature Measurements." Sensors 16, no. 1: 87.
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