Ahumada, M.Orellana, P. A.Domínguez-Adame Acosta, FranciscoMalyshev, Andrey2023-06-172023-06-172019-03-142469-992610.1103/PhysRevA.99.033827https://hdl.handle.net/20.500.14352/13310Work in Madrid was supported by MINECO (Grant No. MAT2016-75955). M.A. acknowledges financial support from a PIIC-UTFSM grant, DGIIP UTFSM, and CONICYT Doctorado Nacional through Grant No. 21141185.We propose an efficient single-photon router comprising two resonator waveguide channels coupled by several sequential cavities with embedded three-level atoms. We show that the system can operate as a perfect four-way single-photon switch. We also demonstrate that an incident single photon propagating in one of the waveguides can be routed into one or the other output channels; such routing can be controlled by the external classical electromagnetic field driving the atoms. We argue that, under appropriate conditions, the efficiency of such routing can be close to 100% within a broad operational bandwidth, suggesting various applications in photonics.engjournal articlehttp://dx.doi.org/10.1103/PhysRevA.99.033827https://journals.aps.orgopen access538.9AtomsOpticsPhysicsAtomicMolecularChemicalFísica del estado sólidoFísica matemática2211 Física del Estado Sólido