Towards a picosecond transform-limited nitrogen-vacancy based single photon source.
We analyze a nitrogen-vacancy (NV-) colour centre based single photon source based on cavity Purcell enhancement of the zero phonon line and suppression of other transitions. Optimal performance conditions of the cavity-centre system are analyzed using Master equation and quantum trajectory methods. By coupling the centre strongly to a high-finesse optical cavity [Q approximately O(10(4) - 10(5)), V approximately lambda (3)] and using sub-picosecond optical excitation the system has striking performance, including effective lifetime of 70 ps, linewidth of 0.01 nm, near unit single photon emission probability and small [O(10(-5))] multi-photon probability.
Quantum Communications Victoria, School of Physics, The University of Melbourne, Victoria 3010, Australia. chsu@ph.unimelb.edu.au
Chun-Hsu
CH
Su
Andrew D
AD
Greentree
Lloyd C L
LC
Hollenberg
D003198:Computer Simulation; D009584:Nitrogen / Q000737:chemistry*; D017785:Photons; D013997:Time Factors
D009584:Nitrogen