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Ultrafast single-photon detection at high repetition rates based on optical Kerr gates under focusing

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Abstract

The ultrafast detection of single photons is currently restricted by the limited time resolution (a few picoseconds) of the available single-photon detectors. Optical gates offer a faster time resolution, but so far they have been applied mostly to ensembles of emitters. Here, we demonstrate through a semi-analytical model that the ultrafast time-resolved detection of single quantum emitters can be possible using an optical Kerr shutter at gigahertz rates under focused illumination. This technique provides sub-picosecond time resolution, while keeping a gate efficiency at around 85%. These findings lay the ground for future experimental investigations on the ultrafast dynamics of single quantum emitters, with implications for quantum nanophotonics and molecular physics.

© 2021 Optical Society of America

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Corrections

Abdul-Hamid Fattah, Assegid Mengistu Flatae, Amr Farrag, and Mario Agio, "Ultrafast single-photon detection at high repetition rates based on optical Kerr gates under focusing: erratum," Opt. Lett. 46, 5205-5206 (2021)
https://opg.optica.org/ol/abstract.cfm?uri=ol-46-20-5205

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