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.

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

References in corpus (2)

• The nature of domain walls in ultrathin ferromagnets revealed by scanning nanomagnetometry
• Nanoimplantation and Purcell enhancement of single NV centers in photonic crystal cavities in diamond

Cited by in corpus (4)

• 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
• Reliable Nanofabrication of Single-Crystal Diamond Photonic Nanostructures for Nanoscale Sensing