Dynamic nitrogen vacancy magnetometry by single-shot optical streaking microscopy | Academic Article individual record

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 s temporal resolution. In validating this system, we detected magnetic fields down to 10T for 40Hz magnetic fields using single-shot imaging and captured the spatial transit of an electromagnetic needle at streak rates as high as 110m/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.

publication outlet

Photonics Research

author list (cited authors)
Keppler, M. A., Steelman, Z. A., Coker, Z. N., Nesldek, M., Hemmer, P. R., Yakovlev, V. V., & Bixler, J. N.
publication date
  • Bioengineering
  • Neurosciences
Digital Object Identifier (DOI)
start page
end page