Impact of detuning and dephasing on a laser-corrected subnatural-linewidth single-photon source

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 revea...

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Bibliographic Details
Published in:arXiv.org 2018-06
Main Authors: Juan Camilo López Carreño, Eduardo Zubizarreta Casalengua, Laussy, Fabrice P, Elena del Valle
Format: Article
Language:English
Subjects:
Elastic scattering
Emission
Emitters
Lasers
Photons
Online Access:Get full text
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Summary: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 also in presence of dephasing, our scheme brings considerable improvement as compared to the standard scheme.
ISSN:2331-8422
DOI:10.48550/arxiv.1806.08774