Fast and robust optically pumped cesium magnetometer-Reference-Cited by-同舟云学术

Fast and robust optically pumped cesium magnetometer

Published:2019-10-19 Issue:5 Volume:9 Page:275-286
ISSN:2192-8584
Container-title:Advanced Optical Technologies
language:en
Short-container-title:

Author:

Lebedev Victor¹,Hartwig Stefan¹,Middelmann Thomas¹

Affiliation:

1. Physikalisch-Technische Bundesanstalt , Abbestr. 2-12 , D-10587 Berlin , Germany

Abstract

Abstract We present a fast and robust optically pumped magnetometer that is based on a feedback-controlled spin ensemble of cesium atoms in spin-polarized vapor. The table-top system is intended for operation in unshielded environment, and its design allows conversion into a handheld sensor head. Under strongly disturbed environmental conditions in the laboratory, the sensor exhibits a speed of more than 56 kHz, while having a slew rate of 39 mT/s and a full dynamic range of 10 – 120 μT. Under these conditions a sensitivity of 33 pT / Hz

$\text{pT}/\sqrt{\text{Hz}}$

is reached. By reducing the speed to 3.6 kHz the sensitivity can be improved to 6 pT / Hz

$\text{pT}/\sqrt{\text{Hz}}$

, which is close to the shot noise limit. We describe the sensor design and its optimization and demonstrate the performance of the sensor under conditions appropriate for magnetic susceptometry measurements.

Publisher

Walter de Gruyter GmbH

Subject

Instrumentation,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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