Dynamic nitrogen vacancy magnetometry by single-shot optical streaking microscopy
Abstract
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 ∼ 400 μs 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 110 μm/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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 26, 2022
- Source ID
- 10.1364/prj.455634
Entities
People
- Joel N. Bixler
- Mark A. Keppler
- Miloš Nesládek
- Philip Hemmer
- Vladislav V Yakovlev
- Zachary A Steelman
- Zachary N. Coker
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- Cancer Prevention and Research Institute of Texas
- Czech Science Foundation
- Czech Technical University in Prague
- Hasselt University
- Interuniversity Microelectronics Centre
- National Institutes of Health
- National Research Council
- National Science Foundation
- School of the Art Institute of Chicago
- Texas A&M University
- United States Air Force