具有皮特斯拉灵敏度的微腔光机械磁力测量法。

Microcavity optomechanical magnetometry with picotesla-sensitivity.

作者信息

Cai Zhaoyu, Bao Chengying

机构信息

State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, China.

出版信息

Light Sci Appl. 2025 Feb 20;14(1):91. doi: 10.1038/s41377-025-01767-4.

DOI:10.1038/s41377-025-01767-4

PMID:39979283

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11842583/

Abstract

A new microcavity magnetometry with FeGaB thin film achieves 1.68 pT/Hz sensitivity, which is two orders of magnitude improvement over previous work. Corona current detection has been demonstrated using this magnetometer.

摘要

一种采用FeGaB薄膜的新型微腔磁力测量法实现了1.68 皮特斯拉/赫兹的灵敏度，这比之前的工作提高了两个数量级。利用该磁力计已实现了电晕电流检测。