Intersubband optical absorption of electrons in double parabolic quantum wells of AlxGa1−xAs/AlyGa1−yAs Project supported by the National Natural Science Foundation of China (Grant No. 61274098). |
(color online) Variations of αmn with photon energy of (a) DPQWs and (b) DSQWs for different Al components. The peaks indicate the main contribution of the transition of electron from states m to n denoted by m–n in the panels. |