Optical Experiments in GaAs-AlAs Ultrathin Superlattices
21 March 1988
We report photoluminescence (PL), excitation (PLE), and resonant Raman (RRS) experiments in (GaAs) sub 1 (AlAs) sub 1 and (GaAs) sub 2 (AlAs) sub 2 superlattices grown by MBE. Structural information is obtained form a comparison of the Raman spectra of the superlattices with those random AlGaAs alloys.