2011
DOI: 10.1103/physrevx.1.011007
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Hybrid Nanocavity Resonant Enhancement of Color Center Emission in Diamond

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 li… Show more

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Cited by 88 publications
(102 citation statements)
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“…The ZPL emission makes up only a small fraction of the total spontaneous emission rate γ NV : ~ 3% [11,22,23]. However, if an NV -is placed within the field of a hybrid GaP/diamond cavity, its emission rate into the ZPL can be enhanced by a Purcell factor F ZPL [19,24]. Under weak coupling, the enhancement is given by…”
Section: Figure Of Merit For Single Emitter Photon Collection Efficiencymentioning
confidence: 99%
See 1 more Smart Citation
“…The ZPL emission makes up only a small fraction of the total spontaneous emission rate γ NV : ~ 3% [11,22,23]. However, if an NV -is placed within the field of a hybrid GaP/diamond cavity, its emission rate into the ZPL can be enhanced by a Purcell factor F ZPL [19,24]. Under weak coupling, the enhancement is given by…”
Section: Figure Of Merit For Single Emitter Photon Collection Efficiencymentioning
confidence: 99%
“…Coupling of the optical emission of near-surface NV -defects in diamond to isolated GaP optical resonators and Purcell enhancement in these structures has previously been demonstrated [18,19]. However, the fabrication approach utilized does not allow for the deterministic placement of those resonators on the substrate, and hence cannot be employed for the fabrication of waveguide-integrated cavity structures.…”
Section: Introductionmentioning
confidence: 99%
“…6 Purcell enhancement of the ZPL has been demonstrated in several cavity architectures such as diamond photonic crystal cavities, 7-11 microring resonators, 12 and hybrid structures with evanescently coupled nanodiamonds. [13][14][15][16] In recent years, the open Fabry-Perot microcavity 17 has emerged as a promising platform for diamond emitters. [18][19][20][21][22] Such a microcavity provides in-situ spatial and spectral tunability, while reaching strong field confinement due to its small mode volume V and high quality factor Q.…”
mentioning
confidence: 99%
“…9,10 Hybrid solid- state schemes consisting of quantum emitters in individual nanocrystals coupled to semiconductor optical cavities in other materials have also been demonstrated; 11 however, they typically require AFM 'pick-and-place' assembly techniques 12 or complex film transfers. [13][14][15][16] Silicon-vacancy (SiV − ) color centers in diamond have recently emerged as promising candidates for QIP applications. 17 Due to the inversion symmetry of the SiV − centers, they display superior spectral stability and narrow inhomogeneous broadening, with room temperature linewidths of a few nanometers and nearly transform-limited linewidths at low temperature.…”
Section: Table Of Content Graphicmentioning
confidence: 99%