Impact of detuning and dephasing on a laser-corrected subnatural-linewidth single-photon source
Abstract
The elastic scattering peak of a resonantly driven two-level system has been argued to provide narrow-linewidth antibunched photons. Although independent measurements of spectral width on the one hand and antibunching, on the other hand, do seem to show that this is the case, a joint measurement reveals that only one or the other of these attributes can be realised in the direct emission. We discuss a scheme which interferes the emission with a laser to produce simultaneously single photons of subnatural linewidth. In particular, we consider the effect of dephasing and of the detuning between the driving laser and/or the detector with the emitter. We find that our scheme brings such considerable improvement as compared to the standard schemes as to make it the best single-photon source in terms of all-order multi-photon suppression by several orders of magnitudes. While the scheme is particularly fragile to dephasing, its superiority holds even for subnatural-linewidth emission down to a third of the radiative lifetime.Citation
J. C. López Carreño et al (2019) Impact of detuning and dephasing on a laser-corrected subnatural-linewidth single-photon source. Journal of Physics B: Atomic, Molecular and Optical Physics, 52 (3) 035504Publisher
IOP PublishingJournal
Journal of Physics B: Atomic, Molecular and Optical PhysicsAdditional Links
https://iopscience.iop.org/article/10.1088/1361-6455/aaf68d/metaType
Journal articleLanguage
enISSN
1361-6455ae974a485f413a2113503eed53cd6c53
10.1088/1361-6455/aaf68d
Scopus Count
Collections
The following licence applies to the copyright and re-use of this item:
- Creative Commons
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States