Charge state dynamics and optically detected electron spin resonance contrast of shallow nitrogen-vacancy centers in diamond

Zhiyang Yuan, Mattias Fitzpatrick, Lila V.H. Rodgers, Sorawis Sangtawesin, Srikanth Srinivasan, Nathalie P. De Leon

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Nitrogen-vacancy (NV) centers in diamond can be used for nanoscale sensing with atomic resolution and sensitivity; however, it has been observed that their properties degrade as they approach the diamond surface. Here we report that in addition to degraded spin coherence, NV centers within nanometers of the surface can also exhibit decreased fluorescence contrast for optically detected electron spin resonance (OD-ESR). We demonstrate that this decreased OD-ESR contrast arises from charge state dynamics of the NV center, and that it is strongly surface-dependent, indicating that surface engineering will be critical for nanoscale sensing applications based on color centers in diamond.

Original languageEnglish (US)
Article number033263
JournalPhysical Review Research
Volume2
Issue number3
DOIs
StatePublished - Aug 2020

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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