ABSTRACT
We have studied the piezoreflectance (PzR) spectra at 300 K and 80 K related to the intersubband transitions from an asymmetric triangular quantum well (ATQW) and a rectangular quantum well (RQW) fabricated by molecular beam epitaxy using the digital alloy compositional grading (DACG) method. Comparison of the observed intersubband transitions with the envelope function calculations provides a self-consistent verification that the DACG method generated the desired potential profiles.
