EPJ Web Conf.
Volume 190, 2018XIII International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications (HBSM-2018)
|Number of page(s)||2|
|Published online||26 September 2018|
Spontaneous transitions to enhanced fluorescence for GeV centers in a single microcrystalline diamond
Institute for Spectroscopy RAS, 5 Fizicheskaya Str., Troitsk, Moscow 108840, Russia
2 National Research University Higher School of Economics, 20 Myasnitskaya Str., Moscow 101000 Russia
3 Moscow State Pedagogical University, 1/1 M. Pirogovskaya Str., Moscow 119991, Russia
4 Vereshchagin Institute for High Pressure Physics of the Russian Academy of Sciences, 14 Kalushskoye Shosse, Troitsk, Moscow 108840, Russia
* Corresponding author: email@example.com
Published online: 26 September 2018
We propose a theoretical explanation of spontaneous transitions between dim and bright fluorescence intensity states observed experimentally in a microcrystal of diamond with germanium-vacancy colour centres driven by a continuous wave laser. We use a generalized system of optical Maxwell-Bloch equations derived for an emitter in an ensemble of motionless similar particles embedded in a dielectric medium, which is transparent for the incident light. A numerical analysis of transient regimes and several models of slow damping of the bright luminescence mode are reported.
© The Authors, published by EDP Sciences, 2018
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