Spin contrast of purcell-enhanced nitrogen-vacancy centers in diamonds

S. Bogdanov, M. Y. Shalaginov, A. V. Akimov, A. Lagutchev, J. Liu, D. Woods, M. Ferrera, P. Kapitanova, P. Belov, Joseph Maria Kumar Irudayaraj, A. Boltasseva, V. M. Shalaev

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Nitrogen-vacancy centers in diamond allow coherent spin state manipulation and optical readout at room temperature, which has powerful applications in nanoscale sensing. Nanophotonic structures such as plasmonic waveguides, nanoantennae, metamaterials, and metasurfaces can enhance the detected fluorescence rate from such broadband emitters. The fluorescence of the coupled emitter is directed into confined plasmonic modes with high photonic density of states. However, an accurate spin readout requires both high photon counts and a strong contrast between the spin states, both of which can be influenced by the Purcell effect. We introduce a novel method for measuring the spin contrast in large nitrogen-vacancy ensembles. We use this method to study how the photonic density of states must be engineered in order to minimize the uncertainty of spin readout in dense NV ensembles. We describe these results using a kinetic model of the nitrogen-vacancy's internal dynamics.

Original languageEnglish (US)
Title of host publicationCLEO
Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2017
PublisherOptica Publishing Group (formerly OSA)
ISBN (Print)9781943580279
StatePublished - 2017
Externally publishedYes
EventCLEO: QELS_Fundamental Science, CLEO_QELS 2017 - San Jose, United States
Duration: May 14 2017May 19 2017

Publication series

NameOptics InfoBase Conference Papers
VolumePart F42-CLEO_QELS 2017
ISSN (Electronic)2162-2701


OtherCLEO: QELS_Fundamental Science, CLEO_QELS 2017
Country/TerritoryUnited States
CitySan Jose

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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