In this letter,we present the observation of phase conjugation at 9.27μm in a GaAs/AlGaAs multiple step quantum well structure.The response is caused by the nearly resonant intersubband transition.The magnitude of X^...
Work supported by the National Natural Science Foundation of China.
This paper presents Atmospheric Pressure Metalorganic Chemical Vapor Deposition(AP-MOCVD) growth of GaAs/Al-xGa_(1-x)As multiquantum wells for the study of intersubband transition.The multiple quantum well structures ...
1 IntroductionAs an ideal lattice-matched semiconductor heterostructure material of group Ⅲ-Ⅴ,GaAs/AlGaAs exhibits large energy discontinuity of band-gap.Its hetero-junctions and re-lated quantum wells(QWs)as well a...