TY - JOUR
T1 - Nonclassical photon statistics in a single nickel-nitrogen diamond color center photoluminescence at room temperature
AU - Wu, E.
AU - Rabeau, J. R.
AU - Treussart, F.
AU - Zeng, H.
AU - Grangier, P.
AU - Prawer, S.
AU - Roch, J. F.
N1 - Erratum can be found in Journal of Modern Optics, Volume 56(2-3), 443,
http://dx.doi.org/10.1080/09500340902820790
PY - 2008/10
Y1 - 2008/10
N2 - The photoluminescence of a single nickel-nitrogen NE8 color center in a diamond nanocrystal is investigated at room temperature under pulsed excitation by scanning confocal optical microscopy. Photon arrival times are analyzed in terms of the temporal intensity correlation function. Antibunching at short times and bunching behavior for longer times is observed, associated with sub- and super-Poissonian statistics, respectively. The behavior is interpreted by a 'on-off' state model, and transition rates between these two states are inferred from intensity correlation measurements realized at different excitation powers. NE8 color center photoluminescence quantum yield is evaluated to be 65%, a value higher than achieved for a nitrogen-vacancy color center, which is, up to now, the most practical single emitter to build a reliable single-photon source at room temperature.
AB - The photoluminescence of a single nickel-nitrogen NE8 color center in a diamond nanocrystal is investigated at room temperature under pulsed excitation by scanning confocal optical microscopy. Photon arrival times are analyzed in terms of the temporal intensity correlation function. Antibunching at short times and bunching behavior for longer times is observed, associated with sub- and super-Poissonian statistics, respectively. The behavior is interpreted by a 'on-off' state model, and transition rates between these two states are inferred from intensity correlation measurements realized at different excitation powers. NE8 color center photoluminescence quantum yield is evaluated to be 65%, a value higher than achieved for a nitrogen-vacancy color center, which is, up to now, the most practical single emitter to build a reliable single-photon source at room temperature.
KW - Color center
KW - Diamond
KW - Nanocrystals
KW - Quantum key distribution
UR - http://www.scopus.com/inward/record.url?scp=54349090600&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/record.url?scp=65349184157&partnerID=8YFLogxK
UR - https://doi.org/10.1080/09500340902820790
U2 - 10.1080/09500340802267118
DO - 10.1080/09500340802267118
M3 - Article
AN - SCOPUS:54349090600
SN - 0950-0340
VL - 55
SP - 2893
EP - 2901
JO - Journal of Modern Optics
JF - Journal of Modern Optics
IS - 17
ER -