微球
光学
线性
材料科学
光纤
波形
光子学
电压
信号(编程语言)
光纤传感器
物理
量子力学
化学工程
计算机科学
工程类
程序设计语言
作者
Chunlei Jiang,WEICHENG WANG,Bing Yan,Peng Chen,Kaichuan Xu,Yu Sun,zhicheng cong,Taiji Dong,yekun zhou,Zengbo Wang
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-08-31
卷期号:47 (17): 4560-4560
被引量:4
摘要
We propose a novel, to the best of our knowledge, sensor for nanovibration detection based on a microsphere. The sensor consists of a stretched single-mode fiber and a 2 µm microsphere. The light from the optical fiber passes through the microsphere, forming a photonic nanojet (PNJ) phenomenon at the front of the microsphere. The evanescent field in the PNJ enhances the light reflected from the measured object to the single-mode fiber-microsphere probe (SMFMP). Results showed that the system can detect arbitrary nanovibration waveforms in real time with an SMFMP detection resolution of 1 nm. The voltage signal received and the vibration amplitude showed a good linear relationship within the range of 0–100 nm, with a sensitivity of 0.7 mV/nm and a linearity of more than 99%. The sensor is expected to have potential applications in the field of cell nanovibration detection.
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