APL Photonics
(Mar 2022)
Non-contact optical magnetic field sensor based on metamaterial nanomechanics
Guoqiang Lan,
Jun-Yu Ou,
Dimitrios Papas,
Nikolay I. Zheludev,
Eric Plum
Affiliations
Guoqiang Lan
Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
Jun-Yu Ou
Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
Dimitrios Papas
Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
Nikolay I. Zheludev
Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
Eric Plum
Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
DOI
https://doi.org/10.1063/5.0081849
Journal volume & issue
Vol. 7,
no. 3
Abstract
Read online
We demonstrate a non-contact optical magnetic field sensor that is based on actuation of a metamaterial-microcavity by the magnetic Lorentz force. Magnetic field is transduced to a change of the sensor’s reflectivity. The microscale proof-of-concept metamaterial magnetometer can be read from a distance and offers 60 μm spatial, about 10 μs temporal, and sub-microtesla magnetic field resolution.
Published in APL Photonics
ISSN
2378-0967 (Online)
Publisher
AIP Publishing LLC
Country of publisher
United States
LCC subjects
Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website
https://aplphotonics.aip.org
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