Stimulated emission from nitrogen-vacancy centres in diamond
AuthorJeske, J; Lau, DWM; Vidal, X; McGuinness, LP; Reineck, P; Johnson, BC; Doherty, MW; McCallum, JC; Onoda, S; Jelezko, F; ...
Source TitleNature Communications
University of Melbourne Author/sGibson, Brant; Johnson, Brett; McCallum, Jeffrey; Greentree, Andrew; Cole, Jared
AffiliationSchool of Physics
Document TypeJournal Article
CitationsJeske, J., Lau, D. W. M., Vidal, X., McGuinness, L. P., Reineck, P., Johnson, B. C., Doherty, M. W., McCallum, J. C., Onoda, S., Jelezko, F., Ohshima, T., Volz, T., Cole, J. H., Gibson, B. C. & Greentree, A. D. (2017). Stimulated emission from nitrogen-vacancy centres in diamond. Nature Communications, 8 (1), https://doi.org/10.1038/ncomms14000.
Access StatusOpen Access
Stimulated emission is the process fundamental to laser operation, thereby producing coherent photon output. Despite negatively charged nitrogen-vacancy (NV−) centres being discussed as a potential laser medium since the 1980s, there have been no definitive observations of stimulated emission from ensembles of NV− to date. Here we show both theoretical and experimental evidence for stimulated emission from NV− using light in the phonon sidebands around 700 nm. Furthermore, we show the transition from stimulated emission to photoionization as the stimulating laser wavelength is reduced from 700 to 620 nm. While lasing at the zero-phonon line is suppressed by ionization, our results open the possibility of diamond lasers based on NV− centres, tuneable over the phonon sideband. This broadens the applications of NV− magnetometers from single centre nanoscale sensors to a new generation of ultra-precise ensemble laser sensors, which exploit the contrast and signal amplification of a lasing system.
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