Miniature temperature sensor based on encapsulated silica microfibre-microsphere structure

作者：Dang, Hongtao; Li, Jin^*; Xin, Duqiang; Liu, Wei

来源：Micro & Nano Letters, 2018, 13(12): 1739-1742.

DOI：10.1049/mnl.2018.5098

• temperature sensors
• microfabrication
• whispering gallery modes
• microsensors
• silicon compounds
• temperature measurement
• encapsulation
• encapsulated silica microfibre-microsphere structure
• heating-stretching method
• temperature sensor
• standard single-mode fibres
• transmission spectra
• photonic devices
• biochemical sensors
• size-3
• 0 mum
• size-49
• 4 mum to-208
• 04 mum
• temperature 30
• 18 degC to 38
• 52 degC
• SiO2

Either microfibres or microspheres with different diameters were prepared from standard single-mode fibres with heating-stretching method. The influence of the different diameters of microspheres (from -49.4 to -208.04 m) on the transmission spectra of silica microfibre with a diameter of -3 m was studied through the whispering gallery modes. In addition, the temperature sensing characteristic of this microfibre-microsphere system was demonstrated with a sensitivity of -12.66 pm/degrees C in the interval of 30.18-38.52 degrees C. Due to its simple, costless and miniature fabrication process, this microfibre-microsphere system will be the promising candidate for novel photonic devices and bio-chemical sensors.

• 出版日期2018-12
• 单位东北大学; 西京学院