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Compared with superconducting quantuminterference devices, chip-scale atomic magnetometersusing the wafer-level micro alkali vapor cells can be usedmore conveniently in the applications of geophysicalmapping, health care and remote monitoring. Drasticwall collisions and decreased polarization lifetime arethe main barriers for the performance of the chip-scaleatomic magnetometers. In this study, OTS...
This paper focuses on geometry influence of the micro alkali vapor cell on the sensitivity of the chip-scale atomic magnetometers. For the first time, by using micro spherical alkali vapor cells instead of traditional micro planar alkali vapor cells, we demonstrate a chip-scale atomic magnetometer with a ten-fold improvement in sensitivity experimentally. Besides, results also show that the micro...
Highly sensitive optical magnetometers present high performance in detection of biological magnetic fields from the heart or the brain and have impact on other areas as diverse as magnetic resonance imaging, space science and remote monitoring. A chip-scale SERF-regime optical magnetometer based on a MEMS process is fabricated instead of a large-chamber one and the optical module and the vapor cell...
The importance of the atomic magnetometer hasalready been widely recognized and it is an emergency to come up with portable atomic magnetometers with highperformance. The scalar magnetometer with its uniqueproperty of merely sensitive to the magnitude but relativelyinsensitive to the direction of the ambient magnetic field. This work presents a novel solution which combines two types of scalar atomic...
Micro-fabricated optical magnetometers as themost sensitive magnetic field sensors play a significant role in avariety of areas ranging from health care and nuclearmagnetic resonance to fundamental atomic physics researchand remote monitoring. Optoelectronic integration is the mainbarrier for the performance of the micro-fabricated opticalmagnetometer. In this study, by using micro alkali vapor cellwith...
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