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Hybrid nanocavity resonant enhancement of color center emission in diamond

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1103/PhysRevX.1.011007
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FormatText, Article
SubjectDiamond substrates; Diamond surfaces; Enhanced Emission; Low temperatures; Nano-cavities; Nanophysics; NV center; Quantum Information; Resonant enhancements; Single crystal diamond; Spontaneous emission lifetime; Whispering gallery modes; Zero-phonon line; Color centers; Gallium phosphide; Phonons; Photonics; Quantum optics; Diamonds
Abstract
Resonantly enhanced emission from the zero-phonon line of a diamond nitrogen-vacancy (NV) center in single crystal diamond is demonstrated experimentally using a hybrid whispering gallery mode nanocavity. A 900 nm diameter ring nanocavity formed from gallium phosphide, whose sidewalls extend into a diamond substrate, is tuned onto resonance at a low temperature with the zero-phonon line of a negatively charged NV center implanted near the diamond surface. When the nanocavity is on resonance, the zero-phonon line intensity is enhanced by approximately an order of magnitude, and the spontaneous emission lifetime of the NV is reduced by as much as 18%, corresponding to a 6.3X enhancement of emission in the zero photon line.
Publication date
In
  • Physical Review X 1, no. 1 (7 September 2011): 1–7.
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number21272024
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Record created2014-05-21
Record modified2020-04-21
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