Nitrogen vacancy diamonds have emerged as sensitive solid-state magnetic field sensors capable of producing diffraction limited and sub-diffraction field images.Here,for the first time,to our knowledge,we extend those measurements to high-speed imaging,which can be readily applied to analyze currents and magnetic field dynamics in circuits on a microscopic scale.To overcome detector acquisition rate limitations,we designed an optical streaking nitrogen vacancy microscope to acquire two-dimensional spatiotemporal kymograms.We demonstrate magnetic field wave imaging with micro-scale spatial extent and～400μs temporal resolution.In validating this system,we detected magnetic fields down to 10 μT for 40 Hz magnetic fields using single-shot imaging and captured the spatial transit of an electromagnetic needle at streak rates as high as 110μm/ms.This design has the capability to be readily extended to full 3D video acquisition by utilizing compressed sensing techniques and a potential for further improvement of spatial resolution,acquisition speed,and sensitivity.The device opens opportunities to many potential applications where transient magnetic events can be isolated to a single spatial axis,such as acquiring spatially propagating action potentials for brain imaging and remotely interrogating integrated circuits.

MARK A.KEPPLER;ZACHARY A.STEELMAN;ZACHARY N.COKER;MILO? NESLáDEK;PHILIP R.HEMMER;VLADISLAV V.YAKOVLEV;JOEL N.BIXLER

Department of Biomedical Engineering,Texas A&M University,College Station,Texas 77843,USA;SAIC,JBSA Fort Sam Houston,Texas 78234,USA;National Research Council Research Associateship Program,Washington,DC 20001,USA;IMOMEC Division,IMEC,B-3590 Diepenbeek,Belgium;Institute for Materials Research(IMO),Hasselt University,B-3590 Diepenbeek,Belgium;Czech Technical University in Prague,27201 Kladno,Czech Republic;Department of Electrical and Computer Engineering,Texas A&M University,College Station,Texas 77843,USA;Bioeffects Division,Airman System Directorate,Air Force Research Laboratory,JBSA Fort Sam Houston,Texas 78234,USA

光子学研究（英文）

[1]MARK A.KEPPLER;ZACHARY A.STEELMAN;ZACHARY N.COKER;MILO? NESLáDEK;PHILIP R.HEMMER;VLADISLAV V.YAKOVLEV;JOEL N.BIXLER-.Dynamic nitrogen vacancy magnetometry by single-shot optical streaking microscopy)[J].光子学研究（英文）,2022(09):2147-2156

kymograms,interrogating

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