2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173610We study the coherent scattering process of a single photon confined in an one-dimensional (1D) coupled cavity-array, where a $Λ$-type three-level atom is placed inside one of the cavities in the array and behaves as a functional quantum node (FQN). We show that, through the electromagnetic induced transparency (EIT) mechanism, the $Λ$-type FQN bears complete control over the reflection and transmission of the incident photon along the cavity-array. We also demonstrate the emergence of a quasibound state of the single photon inside a secondary cavity constructed by two distant FQN's as two end mirrors, from which we are motivated to design an all-optical single photon storage device of quantum coherence.8 pages, 6 figuresQuantum PhysicsOther Condensed Mattertext