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K: Fachverband Kurzzeit- und angewandte Laserphysik

K 7: Laser-Beam Matter Interaction - Laser Applications II

K 7.5: Vortrag

Donnerstag, 17. März 2022, 15:00–15:15, K-H4

Ultrafast single-photon detection at high repetition rates based on optical Kerr gates under focusing — •Amr Farrag¹, Abdul-Hamid Fattah¹, Assegid Mengistu Flatae¹, and Mario Agio^1,2 — ¹Laboratory of Nano-Optics and Cµ, University of Siegen, 57072 Siegen, Germany — ²National Institute of Optics (INO), National Research Council (CNR), 50125 Florence, Italy

Abstract:

The ultrafast single-photon detection of quantum emitters has become recently vital, as there are faster emission processes that the current techniques cannot resolve. To overcome this limitation, here we present a semi-analytical model using the Optical-Kerr-shutter (OKS) technique at GHz rate under focused illumination, showing a gate efficiency around 70%. The findings will form the basis for experimental demonstration of time-resolved ultrafast detection of single emitters. In addition, it will be beneficial for various fields for instance, quantum nanophotonics, quantum information science and quantum optics.

Reference: A.-H. Fattah, A. M. Flatae, A. Farrag, and M. Agio, Opt. Lett. 46, 560(2021).