Optical magnetometry with sub-wavelength spatial resolution using individual spins in diamond
POSTER
Abstract
The ability to map weak magnetic fields with nanometer resolution is of great importance in biological science and high precision metrology of nanoscale structures. We describe and demonstrate a new technique that combines high spatial resolution in the spirit of stimulating-emission-depletion (STED) fluorescence microscopy [1] and nanoscale magnetic sensing with individual spins in diamond [2,3]. This new magnetic sensing and nanometer resolution fluorescence microscopy approach (m-STED) will allow detection of single electronic spins at a distance of 10 nm with 5-7 folds improvement beyond the diffraction limit lateral resolution. \\[4pt] [1] Hell, S. W. and J. Wichmann, Opt. Lett. 19, 780 (1994).\newline [2] J.R. Maze, et al., Nature 455, 644 (2008).\newline [3] J.M. Taylor, et al., Nature Physics 4, 810 (2008).