Multiple intrinsically identical single-photon emitters in the solid state
Lachlan Rogers1,
Kay D. Jahnke1,
Tokuyuki Teraji2,
Luca Marseglia1,
Cristoph Müller1,
Boris Naydenov1,
Hardy Schauffert1,
Cristine Kranz3,
Jeinichi Isoya4,
Liam P. McGuinness1,
Fedor Jelezko1.
1Institute for Quantum Optics and Center for Integrated Quantum Science and Technology (IQst), Ulm University, Albert-Einstein-Allee 11, Ulm D-89081, Germany
2National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
3Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm D-89081, Germany
4Research Center for Knowledge Communities, University of Tsukuba, 1-2 Kasuga, Tsukuba, Ibaraki 305-8550, Japan
Emitters of indistinguishable single photons are crucial for the growing field of quantum technologies. To realize scalability and increase the complexity of quantum optics technologies, multiple independent yet identical single-photon emitters are required. However, typical solid-state single-photon sources are inherently dissimilar, necessitating the use of electrical feedback or optical cavities to improve spectral overlap between distinct emitters. Here we demonstrate bright silicon vacancy (SiV−) centres in low-strain bulk diamond, which show spectral overlap of up to 91% and nearly transform-limited excitation linewidths. This is the first time that distinct single-photon emitters in the solid state have shown intrinsically identical spectral properties. Our results have impact on the application of single-photon sources for quantum optics and cryptography.
BibTeX Record:
@article{ncomms5739,
author={L.Rogers, K.D.Jahnke, T.Teraji, L.Marseglia, C.Müller, B.Naydenov, H.Schauffert, C.Kranz, J.Isoya, L.P.McGuinness, F.Jelezko},
title={Multiple intrinsically identical single-photon emitters in the solid state},
journal={Nature Communications},
volume={5},
number={4739},
url={http://www.nature.com/ncomms/2014/140822/ncomms5739/full/ncomms5739.html#t},
year={2014},
}