An electromagnetically induced absorption grating is formed in a three-level atomic vapor under the condition of electromagnetically induced transparency in which the strong coupling beam is replaced by a standing wave. The transmission and reflection behaviors of the weak probe beam are greatly modified at certain frequencies near the two-photon resonance. An all-optical two-port signal router-all-optical switch is demonstrated.
© 2005 Optical Society of America
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.5580) Atomic and molecular physics : Quantum electrodynamics
(050.2770) Diffraction and gratings : Gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
Andy W. Brown and Min Xiao, "All-optical switching and routing based on an electromagnetically induced absorption grating," Opt. Lett. 30, 699-701 (2005)