Work

Signal-enhanced high-sensitivity atomic magnetometer based on multi-pass cell

Year: 2024

Type: article

Abstract: We propose a signal- and sensitivity-enhanced spin-exchange-relaxation-free atomic magnetometer utilizing a multi-pass cell with a highly spatially homogeneous optical pumping scheme. The relationship between the magnetometer’s performance and the number of probe beam passes is measured. The optical rotation angle exhibits a linear correlation with the number of passes, achieving 89 mrad nT−1 for a quadruple-pass cell. However, the sensitivity does not increase linearly when further increasing the optical length due to the noise limit. This work provides a method to study the enhancement performance of the magnetic response and sensitivity in atomic magnetometers by using multi-pass cells.

Source: Applied Physics Express

DOI: 10.35848/1882-0786/ad9078

Authors: Jin Peng, Yiran Yin, An-Ning Xu, Bei Liu, Zhiqiang Li, Chun Wang

Institution: Shandong University

Language: English

Topic: Atomic and Subatomic Physics Research

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,250

Funders: National Natural Science Foundation of China, Natural Science Foundation of Shandong Province