Creating diamond color centers for quantum optical applications

Abstract

Nitrogen vacancy (NV) centers in diamond have distinct promise as solid-state qubits. This is because of their large dipole moment, convenient level structure and very long room-temperature coherence times. In general, a combination of ion irradiation and subsequent annealing is used to create the centers, however for the rigorous demands of quantum computing all processes need to be optimized, and decoherence due to the residual damage caused by the implantation process itself must be mitigated. To that end we have studied photoluminescence (PL) from NV${}^{-}$, NV${}^0$ and GR1 centers formed by ion implantation of 2MeV He ions over a wide range of fluences. The sample was annealed at $600^{\circ }$C to minimize residual vacancy diffusion, allowing for the concurrent analysis of PL from NV centers and irradiation induced vacancies (GR1). We find non-monotic PL intensities with increasing ion fluence, monotonic increasing PL in NV${}^0$/NV${}^{-}$ and GR1/(NV${}^0$ + NV${}^1$) ratios, and increasing inhomogeneous broadening of the zero-phonon lines with increasing ion fluence. All these results shed important light on the optimal formation conditions for NV qubits. We apply our findings to an off-resonant photonic quantum memory scheme using vibronic sidebands.

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Cited by in corpus (38)

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• New infrared emission of the NV centre in diamond: Zeeman and uniaxial stress studies
• Quantum speedup in a memory environment
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• Hybrid photonic crystal cavity and waveguide for coupling to diamond NV-centers
• Diamond Integrated Quantum Photonics: A Review
• Coupling of nitrogen vacancy centers in nanodiamonds by means of phonons
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• Integrated Single Photon Emitters
• Design of flexible ultrahigh-Q microcavities in diamond-based photonic crystal slabs
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• Effects of low energy electron irradiation on formation of nitrogen-vacancy centers in single-crystal diamond
• Single-atom doping for quantum device development in diamond and silicon
• Template-Assisted Self Assembly of Fluorescent Nanodiamonds for Scalable Quantum Technologies
• Towards optimized surface $\delta$-profiles of nitrogen-vacancy centers activated by helium irradiation in diamond
• Spatially - resolved study of the Meissner effect in superconductors using NV-centers-in-diamond optical magnetometry
• Quantum Control for Nanoscale Spectroscopy With Diamond Nitrogen-Vacancy Centers: A Short Review
• Splitting of photo-luminescent emission from nitrogen-vacancy centers in diamond induced by ion-damage-induced stress
• Ultrahigh nitrogen-vacancy center concentration in diamond
• Local formation of nitrogen-vacancy centers in diamond by swift heavy ions
• Proximal nitrogen reduces the fluorescence quantum yield of nitrogen-vacancy centres in diamond
• Sensitive detection of level anti-crossing spectra of nitrogen-vacancy centers in diamond
• Optically Induced Polarization and Depolarization of an Electron Spin in a Nitrogen-Vacancy Center of Diamond Nano-crystals
• Efficient Optical Quantification of Heterogeneous Emitter Ensembles
• Creation, Control, and Modeling of NV Centers in Nanodiamonds
• Single photon quantum non-demolition in the presence of inhomogeneous broadening
• Isotopic identification of engineered nitrogen-vacancy spin qubits in ultrapure diamond
• Direct formation of nitrogen-vacancy centers in nitrogen doped diamond along the trajectories of swift heavy ions
• Efficient fabrication of high-density ensembles of color centers via ion implantation on a hot diamond substrate
• Electromagnetically induced transparency in inhomogeneously broadened divacancy defect ensembles in SiC
• Solid-state laser refrigeration of nanodiamond quantum sensors
• Creation of nitrogen-vacancy centers in chemical vapor deposition diamond for sensing applications
• Creating high density ensembles of nitrogen-vacancy centers in nitrogen-rich type Ib nanodiamonds
• Engineering Nanodiamonds for Quantum Sensing: Material Constraints at the Nanoscale