Two-level ultrabright single photon emission from diamond nanocrystals.
The fabrication of stable ultrabright single photon sources operating at room temperature is reported. The emitter is based on a color center within a diamond nanocrystal grown on a sapphire substrate by chemical vapor deposition method and exhibits a two-level electronic behavior with a maximum measured count rate of 3.2 x 10(6) counts/s at saturation. The emission is centered at approximately 756 nm with a full width at half-maximum approximately 11 nm and an excited state lifetime of 3.7 ns. These unique properties make it a leading candidate for quantum photonics and communication applications as well as for cellular biomarking.
Aharonovich
Igor
I
School of Physics, University of Melbourne, Parkville, Victoria 3010, Australia. i.aharonovich@pgrad.unimelb.edu.au
Castelletto
Stefania
S
Simpson
David A
DA
Stacey
Alastair
A
McCallum
Jeff
J
Greentree
Andrew D
AD
Prawer
Steven
S
D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology; D010316:Particle Size; D017785:Photons; D011789:Quantum Theory; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors