Efficient Phase Conjugation Wave Generation from a GaAs Single Quantum Well in a Microcavity

Abstract
We propose a scheme of efficient phase conjugation wave generation with a semiconductor microcavity. We show experimental results for a GaAs single quantum well (SQW) in a planar AlGaAs microcavity at 13 K. A single pump beam directed normally to the planar cavity produces counterpropagating pump fields in the QW region. Using the quantum confined Stark effect, we tune the exciton resonance energy around the fixed cavity resonance. Large enhancement of the signal occurs when the exciton resonance coincides with the cavity resonance.