Abstract
The current interest in GaAs/AlGaAs multiple quantum well (MOW) materials has developed because of unique electronic and optical properties due to the presence of the 2-D room temperature excitons in these structures.1 Applications of multiple quantum wells to modulators and detectors have previously been reported.2 Only recently, however, have the excitonic properties of quantum wells been exploited in optical waveguide geometries.3,4 Here we present results of a study on single-mode multiple quantum well asymmetric slab waveguides using the grating coupling technique.
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