期刊
SENSORS
卷 11, 期 2, 页码 1992-2000出版社
MDPI
DOI: 10.3390/s110201992
关键词
temperature sensor; dielectric-loaded surface plasmon-polariton waveguide; waveguide-ring resonator
资金
- FTP [09-072949 ANAP]
The application of a waveguide-ring resonator based on dielectric-loaded surface plasmon-polariton waveguides as a temperature sensor is demonstrated in this paper and the influence of temperature change to the transmission through the waveguide-ring resonator system is comprehensively analyzed. The results show that the roundtrip phase change in the ring resonator due to the temperature change is the major reason for the transmission variation. The performance of the temperature sensor is also discussed and it is shown that for a waveguide-ring resonator with the resonator radius around 5 mu m and waveguide-ring gap of 500 nm which gives a footprint around 140 mu m(2), the temperature sensitivity at the order of 10 (2) K can be achieved with the input power of 100 mu W within the measurement sensitivity limit of a practical optical detector.
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