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arXiv · 2010.06749

Ultrafast single-photon detection based on optical Kerr gates at GHz rates

Abdul-Hamid Fattah·Assegid Mengistu Flatae·Amr Farrag·Mario Agio
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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 mostly applied 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 (OKS) at GHz 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

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Abdul-Hamid Fattah, Assegid Mengistu Flatae, Amr Farrag, Mario Agio. 2020-10-14. Ultrafast single-photon detection based on optical Kerr gates at GHz rates. https://doi.org/10.1364/ol.414895%2C%2010.1364%2Fol.443779

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