High-precision measurement of the magneto-optical Faraday effect via difference weak measurements
Year: 2024
Type: article
Abstract: We propose a modified difference weak measurement scheme that permits precise measurements of the magneto-optical Faraday effect. By making normalized difference processing for a set of post-selected light intensity, a linear-response regime with a significant weak-value amplification effect is established. In the proof-of-principle experiment, we measure the magnetic intensity using the polarization system and achieve precision at the order of ∼10−7 T. Our scheme can be applied to measure other magneto-optical effects, providing a method for future ultra-sensitive sensing and metrology in magnetic physics.
Source: Journal of Applied Physics
DOI: 10.1063/5.0237258
Authors: Zhihui Wang, Bo Wang, Xuan Zheng, Liza Jiensibieke, Junpeng Wang, Sujian Niu, Zhaoxue Li, Xining Yang
Institution: Xinjiang Normal University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,500
Award: G4883920972
OpenAlex ID: W4404503281