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Slowing/stopping the light travelling in free space with electromagneticallyinduced transparency to im- plement the optical quantum information processingsand store information has been paid much attention in recent years. For thewaveguide photons, here, we propose an approach to stop them with acontrollable atomic cavity generated by a pair of atomic mirrors; one of themreflects the photon completely and an- other one with the adjustablereflected/transmitted probability of the photons. Based on the full quantummechanical theory in real space, we show that the reflected/transmittedprobability of the waveguide photon with a fixed frequency can be controlled byadjusting the energy-splitting of the driven two-level atomic scatters (i.e.,atomic mirrors). As a consequence, the photon can be controllablytransmitted/reflected along the waveguide by the aside atomic mirrors with theadjustable atomic energy levels. Ideally, the photons could be stopped in theatomic cavity. This provides a novel mechanism to stop/retravel the waveguidephoton in a controllable ways. The feasibility of the proposal with the currentintegrated optical devices is also discussed.

Stopping waveguide photons with controllable atomic cavity