Figure 3
From: Wide-field magnetometry using nitrogen-vacancy color centers with randomly oriented micro-diamonds
(a) A fluorescent diamond spot with different pixel region radius encircled in different colors and the corresponding ODMR contrast (b) and FWHM (c) for different pixel region. The pixel areas named from a to f in panel a corresponds to the pixel region radius from 1 to 2.5 in panels b and c. (d) ODMR resonance spectra in presence of a bias field at 0 mA (black) and 600 mA (red) and -600 mA (violet) in the current-carrying wire.
