TY - JOUR
T1 - Coherence properties of a single dipole emitter in diamond
AU - Marshall, Graham D.
AU - Gaebel, Torsten
AU - Matthews, Jonathan C. F.
AU - Enderlein, Jörg
AU - O'Brien, Jeremy L.
AU - Rabeau, James R.
N1 - Copyright 2011 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2011/5
Y1 - 2011/5
N2 - On-demand, high repetition rate sources of indistinguishable, polarized single photons are the key component for future photonic quantum technologies (O'Brien et al 2009 Nat. Photonics 3 687-95). Colour centres in diamond offer a promising solution, and the narrow linewidth of the recently identified nickel-based NE8 centre makes it particularly appealing for realizing the transform-limited sources necessary for quantum interference. Here, we report the characterization of dipole orientation and coherence properties of a single NE8 colour centre in a diamond nanocrystal at room temperature. We observe a single-photon coherence time of 0.21 ps and an emission lifetime of 1.5 ns. Combined with an emission wavelength that is ideally suited for applications in existing quantum optical systems, these results show that NE8 is a far more promising source than the more commonly studied nitrogen-vacancy centre and point the way to the realization of a practical diamond colour centrebased single-photon source.
AB - On-demand, high repetition rate sources of indistinguishable, polarized single photons are the key component for future photonic quantum technologies (O'Brien et al 2009 Nat. Photonics 3 687-95). Colour centres in diamond offer a promising solution, and the narrow linewidth of the recently identified nickel-based NE8 centre makes it particularly appealing for realizing the transform-limited sources necessary for quantum interference. Here, we report the characterization of dipole orientation and coherence properties of a single NE8 colour centre in a diamond nanocrystal at room temperature. We observe a single-photon coherence time of 0.21 ps and an emission lifetime of 1.5 ns. Combined with an emission wavelength that is ideally suited for applications in existing quantum optical systems, these results show that NE8 is a far more promising source than the more commonly studied nitrogen-vacancy centre and point the way to the realization of a practical diamond colour centrebased single-photon source.
UR - http://www.scopus.com/inward/record.url?scp=79958812221&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/13/5/055016
DO - 10.1088/1367-2630/13/5/055016
M3 - Article
AN - SCOPUS:79958812221
SN - 1367-2630
VL - 13
SP - 1
EP - 10
JO - New Journal of Physics
JF - New Journal of Physics
M1 - 055016
ER -