文献类型：期刊文献

英文题名：Ultrasensitive and stable pressure sensor based on tapered optical fibres

作者：Zi, Xuehui[1];Chen, Jiao[1];Zhang, Shicheng[1];Li, Xiaolin[1];Wang, Sihan[1];Wei, Jiaqi[1];Lu, Hanbing[1];Sheng, Kai[1];Niu, Yueping[1,2];Gong, Shangqing[1,2]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China

年份：2022

卷号：518

外文期刊名：OPTICS COMMUNICATIONS

收录：;EI(收录号：20221912071731);WOS:【SCI-EXPANDED(收录号:WOS:000803803600007)】；

基金：This work was supported by the National Natural Science Foundation of China (Grants No. 61835013, 12004112, 12034007 and 11974109) , Shanghai Natural Science Foundation (Grant No. 20ZR1414300) , Science and Technology Commission of Shanghai Municipality (Grant No. 21XD1400700) , and Shanghai Sailing Program (Grant No. 20YF1410800) . The work is also sponsored by "Chenguang Program" supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (Grant No. 20CG35) .

语种：英文

外文关键词：Tapered optical fibre; Optical pressure sensor; Adiabatic conditions; Stable mechanical structure

摘要：Micro/nanofibres have been emerging as an interdisciplinary platform for exploring novel sensing technology on the micro/nanoscale. This work proposes and demonstrates an ultrasensitive and stable pressure sensor based on the perturbation of adiabatic conditions during the optical mode evolving in the transition region. In our experiment, when attached to a glass slide, the sensor shows ultrahigh pressure sensitivity of 1.52 kPa-1 which is about three times the sensitivity of the waist region. Simultaneously, the sensing region of the fibre has a diameter of tens of microns to provide a better mechanical structure strength. These preliminary results demonstrate that the sensor has the advantages of stable structure, high sensitivity, and simple preparation process, which may have potential in practical applications.