Ultrasensitive Optomechanical Magnetometry

Ultrasensitive Optomechanical Magnetometry

A cavity optomechanical magneto­meter operating in the 100 pT range is reported. The device operates at earth field, achieves tens of megahertz bandwidth with 60 μm spatial resolution and microwatt optical‐power requirements. These unique capabilities may have a broad range of applications including...

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Veröffentlicht in:Advanced materials (Weinheim) 2014-09, Vol.26 (36), p.6348-6353
Hauptverfasser: Forstner, Stefan, Sheridan, Eoin, Knittel, Joachim, Humphreys, Christopher L., Brawley, George A., Rubinsztein-Dunlop, Halina, Bowen, Warwick P.
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
cavity-optomechanics
Condensed matter
cyrogen-free
Devices
Earth
Holes
Magnetic resonance imaging
magnetometry
Microfluidics
optical sensing
silicon-chip sensing
Spatial resolution
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Beschreibung
Zusammenfassung:A cavity optomechanical magneto­meter operating in the 100 pT range is reported. The device operates at earth field, achieves tens of megahertz bandwidth with 60 μm spatial resolution and microwatt optical‐power requirements. These unique capabilities may have a broad range of applications including cryogen‐free and microfluidic magnetic resonance imaging (MRI), and investigation of spin‐physics in condensed matter systems.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201401144