Coherent interference effects in a nano-assembled diamond NV center cavity-QED system.
Diamond nanocrystals containing NV color centers are positioned with 100-nanometer-scale accuracy in the near-field of a high-Q SiO(2) microdisk cavity using a fiber taper. The cavity modified nanocrystal photoluminescence is studied, with Fano-like quantum interference features observed in the far-field emission spectrum. A quantum optical model of the system is proposed and fit to the measured spectra, from which the NV(-) zero phonon line coherent coupling rate to the microdisk is estimated to be 28 MHz for a nearly optimally placed nanocrystal.
Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA. paul.barclay@hp.com
Paul E
PE
Barclay
Charles
C
Santori
Kai-Mei
KM
Fu
Raymond G
RG
Beausoleil
Oskar
O
Painter