Ultralow-power single-pass all-optical photon router

2025/08/28 by Berroir, Jérémy, Ray, Tridib, Urvoy, Alban +1
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Optics (physics.optics) #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.2508.21124

Abstract

We demonstrate a novel approach for routing guided single photons by combining atom trapping and transverse light confinement with an optical nanofiber. The direction of photon propagation, either reflection or transmission, is controlled by a femtojoule-level beam.

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