Nanomechanical method to gauge emission quantum yield applied to NV-centers in nanodiamond
arXiv:1212.5081 · doi:10.1063/1.4798327
Abstract
We present a technique to nanomechanically vary the distance between a fluorescent source and a mirror, thereby varying the local density of optical states at the source position. Our method can therefore serve to measure the quantum efficiency of fluorophores. Application of our technique to NV defects in diamond nanocrystals shows that their quantum yield can significantly differ from unity. Relying on a lateral scanning mechanism with shear-force probe-sample distance control our technique is straightforwardly implemented in most state-of-the-art near-field microscopes.
11 pages, 3 figures
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Cited by in corpus (6)
- Quantum Nonlinear Optics with a Germanium-Vacancy Color Center in a Nanoscale Diamond Waveguide
- Evaluation of nitrogen- and silicon-vacancy defect centres as single photon sources in quantum key distribution
- Nanoscale fluorescence lifetime imaging with a single diamond NV center
- Enhancement and Inhibition of Spontaneous Photon Emission by Resonant Silicon Nanoantennas
- Spontaneous Emission Control in a Tunable Hybrid Photonic System
- Optical Cryocooling of Diamond