Ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper.

@article{Xue2013UltrasensitiveTS,
  title={Ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper.},
  author={Yang Xue and Yong-Sen Yu and Rui Yang and Chuang Wang and Chao Chen and Jing-chun Guo and Xuan-Yu Zhang and C. Zhu and Hong-Bo Sun},
  journal={Optics letters},
  year={2013},
  volume={38 8},
  pages={1209-11}
}
We demonstrate an ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper (OMT) in a capillary. The OMT is highly sensitive to ambient refractive index (RI) with a maximum sensitivity of 18989 nm/RI unit in the range of 1.3955-1.4008. The thermo-optic effect of isopropanol and the thermal expansions of the sealant and sealed liquid turn the OMT into an ultrasensitive temperature sensor with the maximum sensitivity of -3.88 nm/°C in the range of 20°C-50°C. The… CONTINUE READING