ABSTRACT
We propose and demonstrate a novel type of optical switching mechanism which is based on internal field screening elfects in pin-SCMQW (separate confinement multiple quantum well) structures. By introducing additional large barriers into conventional SCMQW structures, photogenerated holes can be localized in a way such that the resulting local screening of the internal field in the optical confinement layers leads to an increase of the field in the MQW region.
