Color center fluorescence and spin manipulation in single crystal, pyramidal diamond tips

Abstract

We investigate bright fluorescence of nitrogen (NV)- and silicon-vacancy color centers in pyramidal, single crystal diamond tips which are commercially available as atomic force microscope probes. We coherently manipulate NV electronic spin ensembles with $T_2=7.7(3)\mu$s. Color center lifetimes in different tip heights indicate effective refractive index effects and quenching. Using numerical simulations, we verify enhanced photon rates from emitters close to the pyramid apex; a situation promising for scanning probe sensing.

arXiv comment4 pages, 3 figures, for additional information, please see supplementary material uploaded as ancillary file Version 2 to appear (open acces) in Applied Physics Letters

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Cited by in corpus (6)

• Nanoscale Sensing Using Point Defects in Single-Crystal Diamond: Recent Progress on Nitrogen Vacancy Center-Based Sensors
• Single crystal diamond pyramids for applications in nanoscale quantum sensing
• Dissipation-assisted preparation of steady spin-squeezed states of SiV centers
• Enhancing Optical Readout from Diamond AFM Tips for Quantum Nanosensing
• Reliable Nanofabrication of Single-Crystal Diamond Photonic Nanostructures for Nanoscale Sensing
• Sub-GHz linewidths ensembles of SiV centers in a diamond nano-pyramid revealed by charge state conversion