Photochromism in single nitrogen-vacancy defect in diamond

By Torsten Gaebel, M. Domhan, Christoffer Wittmann, I. Popa, F. Jelezko, J. Rabeau, A. Greentree, Steven Prawer, E. Trajkov, P. Hemmer and 1 more. 2005

158 citations recorded by the source corpus.

Photochromism in single nitrogen-vacancy optical centers in diamond is demonstrated. Time-resolved optical spectroscopy shows that intense irradiation at 514 nm switches the nitrogen-vacancy defects to the negative form. This defect state relaxes back to the neutral form under dark conditions. Temporal anticorrelation of photons emitted by the different charge states of the optical center unambiguously indicates that the nitrogen-vacancy defect accounts for both 575 nm and 638 nm emission bands. Possible mechanism of photochromism involving nitrogen donors is discussed.

Subfields: Biomedical Engineering, Computational Mechanics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/413c5329f440cfa457898df5fb6359b4d119c0a7

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Citations in the corpus

• Magnetic field imaging with nitrogen-vacancy ensembles (2011, background): “al nitrogen atom (N) and a vacancy on adjacent lattice sites (Fig. 1(a)). The negatively charged state, which is the focus of this work, is believed to gain an electron from nearby N donor impurities [8]. The energy-level diagram of an NV center is depicted in Fig. 1(b). The NV center has a spin-tri”