聚二甲基硅氧烷
材料科学
磁场
法布里-珀罗干涉仪
干涉测量
复合数
兴奋剂
灵敏度(控制系统)
范德瓦尔斯力
薄膜
光电子学
分析化学(期刊)
光学
复合材料
纳米技术
化学
电子工程
量子力学
物理
工程类
色谱法
分子
有机化学
波长
作者
XIngfeng Wang,Jianfeng Yang
标识
DOI:10.35848/1882-0786/acb3af
摘要
Abstract A magnetic field sensor based on Fabry–Pérot interferometer (FPI) with soft gold magnetic composite film (GMCF) is proposed and demonstrated experimentally. GMCF is fabricated by Fe 3 O 4 -doped polydimethylsiloxane (PDMS) film and adhered thin gold membrane via van der Waals force. Applying an external magnetic field, GMCF can vibrate under magnetic forces and cause a change in the cavity length of FPI and hence modulates the interference spectra. Experimental results indicate that the sensor can achieve maximum sensitivity of 390 pm mT −1 under a linear magnetic field intensity ranging from 0 to 65 mT. The proposed sensor could help with magnetic field detection in complex environments.
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