Dynamic nitrogen vacancy magnetometry by single-shot optical streaking microscopy  

作　　者：MARK A.KEPPLER ZACHARY A.STEELMAN ZACHARY N.COKER MILOŠNESLÁDEK PHILIP R.HEMMER VLADISLAV V.YAKOVLEV JOEL N.BIXLER 

机构地区：[1]Department of Biomedical Engineering,Texas A&M University,College Station,Texas 77843,USA [2]SAIC,JBSA Fort Sam Houston,Texas 78234,USA [3]National Research Council Research Associateship Program,Washington,DC 20001,USA [4]IMOMEC Division,IMEC,B-3590 Diepenbeek,Belgium [5]Institute for Materials Research(IMO),Hasselt University,B-3590 Diepenbeek,Belgium [6]Czech Technical University in Prague,27201 Kladno,Czech Republic [7]Department of Electrical and Computer Engineering,Texas A&M University,College Station,Texas 77843,USA [8]Bioeffects Division,Airman System Directorate,Air Force Research Laboratory,JBSA Fort Sam Houston,Texas 78234,USA

出　　处：《Photonics Research》2022年第9期2147-2156,共10页光子学研究（英文版）

基　　金：National Science Foundation(CMMI-1826078);GrantováAgentura?eskéRepubliky(GA20-28980S);Cancer Prevention and Research Institute of Texas(RP180588);NSF Graduate Research Fellowship(279451);National Institutes of Health(1R01GM127696,1R21CA269099,1R21GM142107);Army Medical Research(W81XWH2010777);Air Force Office of Scientific Research(17RHCOR483,20RHCOR051,FA9550-15-1-0517,FA9550-20-1-0366,FA9550-20-1-0367);U.S.Air Force(FA8650-19-C-6024)。

摘　　要：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 10μT 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.

关 键 词：VACANCY utilizing OVERCOME 

分 类 号：O441.2[理学—电磁学] TP212[理学—物理]