Abstract

The interaction between light and excitons result in coupled propagation modes known as exciton-polaritons [1]. Polaritons confined in quantum well (QW) structures have attracted much attention since they are stabilized by the quantum confined effect of the exciton. Recently, polaritons, such as cavity polaritons [2] and waveguide polaritons[3], have been intensively studied because of their possible application to low threshold lasers and ultra-small waveguide switches [4]. The waveguide polariton has been first demonstrated by a time-of-flight measurement using a GaAs quantum well waveguide.[3]

© 1996 Optical Society of America