A highly efficient two level diamond based single photon source
DA Simpson, E Ampem-Lassen, BC Gibson, S Trpkovski, FM Hossain, ST Huntington, AD Greentree, LCL Hollenberg, S Prawer
APPLIED PHYSICS LETTERS | AMER INST PHYSICS | Published : 2009
An unexplored diamond defect center that is found to emit stable single photons at a measured rate of 1.6 MHz at room temperature is reported. The center, identified in chemical vapor deposition grown diamond crystals, exhibits a sharp zero phonon line at 734 nm with a full width at half maximum of ∼4 nm. The photon statistics confirm that the center is a single emitter and provides direct evidence of a true two level single quantum system in diamond. © 2009 American Institute of Physics.
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Awarded by Australian Research Council
The authors gratefully acknowledge Igor Aharonovich and Dr. Stefania Castelletto for many helpful discussions. This project was supported by Quantum Communications Victoria, which is funded by the Victorian Government's Science, Technology and Innovation initiative. A. D. G. and L. C. L. H. acknowledge the Australian Research Council for financial support (Projects Nos. DP0880466 and DP0770715, respectively).