Ultralow-power single-pass all-optical photon router

Published 28 Aug 2025 in quant-ph, physics.atom-ph, and physics.optics | (2508.21124v1)

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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