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Spectroscopy, imaging, and selective addressing of dark spins at the nanoscale with optically detected magnetic resonance
Author(s) -
Blank Aharon
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201552528
Subject(s) - spins , unpaired electron , diamond , electron paramagnetic resonance , spin (aerodynamics) , physics , spectroscopy , nuclear magnetic resonance , materials science , condensed matter physics , quantum mechanics , composite material , thermodynamics
Unpaired electron spins are an indispensable part of many condensed‐matter systems. Detecting and imaging them, acquiring their spectrum, and selectively addressing these spins at the nanoscale level are ongoing challenges that have been answered only partially to date for a very limited type of physical systems. One recent effort to overcome these challenges makes use of fluorescence detection of paramagnetic defects in diamond crystals to indirectly obtain information about nearby unpaired electron spins that are not fluorescent (known as “dark spins”). Here, we provide a quantitative analysis of the factors affecting the sensitivity of such setup for dark‐spin detection. This is followed by the presentation of a new approach for the detection of the full complex coherent magnetization of the dark spins via its effect on the fluorescence of optically detected nearby diamond defects. This approach can be used for the efficient acquisition of advanced spectroscopic data of a small number of spins as well as for their efficient imaging and selective addressing, based on magnetic resonance imaging (MRI)‐like protocols. Our new spectroscopy and imaging approach is theoretically analyzed to obtain estimations about its possible capabilities in terms of sensitivity and imaging/addressing resolution for a sample with specific dark‐spin characteristics.