期刊
APPLIED PHYSICS LETTERS
卷 108, 期 18, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4948534
关键词
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资金
- DFG through DIP program [FO 703/2-1]
- Marie Curie International Incoming Fellowship within European Community
- Helmholtz Postdoc Programme
We use a radio-frequency Rb-85 alkali-vapor cell magnetometer based on a paraffin-coated cell with long spin-coherence time and a small, low-inductance driving coil to create highly resolved conductivity maps of different objects. We resolve sub-mm features in conductive objects, we characterize the frequency response of our technique, and by operating at frequencies up to 250 kHz we are able to discriminate between differently conductive materials based on the induced response. The method is suited to cover a wide range of driving frequencies and can potentially be used for detecting non-metallic objects with low DC conductivity. Published by AIP Publishing.
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