Suitability of nanodiamond NV centers for spontaneous emission control experiments
arXiv:1212.5172 · doi:10.1088/1367-2630/15/4/043017
Abstract
NV centers in diamond are generally recognized as highly promising as indefinitely stable highly efficient single-photon sources. We report an experimental quantification of the brightness, radiative decay rate, nonradiative decay rate and quantum efficiency of single NV centers in diamond nanocrystals. Our experiments show that the commonly observed large spread in fluorescence decay rates of NV centers in nanodiamond is inconsistent with the common explanation of large nanophotonic mode-density variations in the ultra-small high-index crystals at near-unity quantum efficiency. We report that NV centers in 25 nm nanocrystals are essentially insensitive to local density of states (LDOS) variations that we induce at a dielectric interface by using liquids to vary the refractive index, and propose that quantum efficiencies in such nanocrystals are widely distributed between 0% and 20%. For single NV centers in larger 100 nm nanocrystals, we show that decay rate changes can be reversibly induced by nanomechanically approaching a mirror to change the LDOS. Using this scanning mirror method, for the first time we report calibrated quantum efficiencies of NV centers, and show that different but nominally identical nanocrystals have widely distributed quantum efficiencies between 10% and 90%. Our measurements imply that nanocrystals that are to be assembled into hybrid photonic structures for cavity QED should first be individually screened to assess fluorescence properties in detail.
27 pages, 6 figures
References in corpus (15)
- High-sensitivity diamond magnetometer with nanoscale resolution
- High-fidelity projective readout of a solid-state spin quantum register
- Scanning magnetic field microscope with a diamond single-spin sensor
- Decoherence-protected quantum gates for a hybrid solid-state spin register
- Cavity Quantum Electrodynamics with Anderson-localized Modes
- Spin dynamics in the optical cycle of single nitrogen-vacancy centres in diamond
- Controlled coupling of a single nitrogen-vacancy center to a silver nanowire
- Polarization-selective excitation of N-V centers in diamond
- Electron spin resonance of nitrogen-vacancy centers in optically trapped nanodiamonds
- Size dependent oscillator strength and quantum efficiency of CdSe quantum dots determined by controlling the local density of states
- Prediction and measurement of the size-dependent stability of fluorescence in diamond over the entire nanoscale
- Deterministic nano-assembly of a coupled quantum emitter - photonic crystal cavity system
- Near-field optical microscopy with a nanodiamond-based single photon tip
- `Deterministic' quantum plasmonics
- Gray-Tone Lithography Implementation of Drexhage's Method for Calibrating Radiative and Nonradiative Decay Constants of Fluorophores
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