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Signal estimation and coherence: publisher’s note

Laura Ares, Alfredo Luis

This publisher's note contains a correction to Opt. Lett.46, 5409 (2021)10.1364/OL.439197.

Optics LettersNov 22, 20210 citations

Active magnetic compensation of spin-exchange-relaxation-free atomic magnetometer

楚中毅 CHU Zhong-yi, 孙晓光 SUN Xiao-guang, 万双爱 WAN Shuang-ai +1 more

Optics and Precision EngineeringJan 1, 20142 citations

Signal-enhanced spin-exchange relaxation-free atomic magnetometer

Cao Li, Junjian Tang, Yaohua Zhang +4 more

Sensors and Actuators A PhysicalFeb 16, 202320 citations

High spatial resolution multi-channel optically pumped atomic magnetometer based on a spatial light modulator

Xiujie Fang, Kai Wei, Tian Zhao +5 more

Ultra-sensitive multi-channel optically pumped atomic magnetometers based on the spin-exchange relaxation-free (SERF) effect are powerful tools for applications in the field of magnetic imaging. To simultaneously achieve ultra-high spatial resolution and ultra-high magnetic field sensitivity, we proposed a high-resolution multi-channel SERF atomic magnetometer for two-dimensional magnetic field measurements based on a digital micro-mirror device (DMD) as the spatial light modulator for a single vapor cell. Under the optimal experimental conditions obtained via spatial and temporal modulation of the probe light, we first demonstrated that the average sensitivity of the proposed 25-channel magnetometer was approximately 25fT/Hz 1/2 with a spatial resolution of 216µm. Then, we measured the magnetic field distribution generated by a gradient coil and compared the experimentally obtained distributions with those calculated via finite element simulation. The obtained g value of 99.2% indicated good agreement between our experimental results and the theoretical calculations, thereby confirming that our proposed multi-channel SERF magnetometer was effective at measuring magnetic field distributions with an ultra-high spatial resolution.Ultra-sensitive multi-channel optically pumped atomic magnetometers based on the spin-exchange relaxation-free (SERF) effect are powerful tools for applications in the field of magnetic imaging. To simultaneously achieve ultra-high spatial resolution and ultra-high magnetic field sensitivity, we proposed a high-resolution multi-channel SERF atomic magnetometer for two-dimensional magnetic field measurements based on a digital micro-mirror device (DMD) as the spatial light modulator for a single vapor cell. Under the optimal experimental conditions obtained via spatial and temporal modulation of the probe light, we first demonstrated that the average sensitivity of the proposed 25-channel magnetometer was approximately 25fT/Hz 1/2 with a spatial resolution of 216µm. Then, we measured the magnetic field distribution generated by a gradient coil and compared the experimentally obtained distributions with those calculated via finite element simulation. The obtained g value of 99.2% indicated good agreement between our experimental results and the theoretical calculations, thereby confirming that our proposed multi-channel SERF magnetometer was effective at measuring magnetic field distributions with an ultra-high spatial resolution.

Optics ExpressAug 14, 202046 citations

Microfabricated spin exchange relaxation free atomic magnetometer

W. C. Griffith, Ricardo Jiménez-Martínez, Jan Preusser +2 more

Bulletin of the American Physical SocietyMay 22, 20090 citations

A silicon source of frequency-bin entangled photons: publisher’s note

Federico Andrea Sabattoli, Linda Gianini, Angelica Simbula +6 more

This publisher's note contains corrections to Opt. Lett.47, 6201 (2022)10.1364/OL.471241.

Optics LettersJan 11, 20230 citations

Scanning multi-channel spin-exchange relaxation-free atomic magnetometer with high spatial and time resolution: publisher’s note

Abstract

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Scanning multi-channel spin-exchange relaxation-free atomic magnetometer with high spatial and time resolution: publisher’s note

Abstract

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