Shuman LIU, Junqi LIU, Shenqiang ZHAI, Ning ZHUO, Jinchuan ZHANG, Lijun WANG, Yuan LI, Fengqi LIU. Quantum Cascade Detectors with New Active Regions（Invited）[J]. Acta Photonica Sinica, 2021, 50(10): 1004004
- Acta Photonica Sinica
- Vol. 50, Issue 10, 1004004 (2021)
Fig. 1. Schematic diagram of QCD
Fig. 2. Conduction band energy band diagram of a 4.3 μm QCD and the wave function of each quantum well
Fig. 3. Three optical coupling diagrams for QCDs with intersubband transitions
Fig. 4. Conduction band energy band diagram of a 4.5 μm QD-QCD and the wave function of each quantum well［24］
Fig. 5. Transmission electron microscope dark field image of the QD-QCD epitaxial wafer
Fig. 6. Normal incident response performances of QD-QCDs［24］
Fig. 7. Conduction band energy band diagram of an 8.6 μm bound-to-miniband diagonal transition QCD and the wavefunction of each quantum well
Fig. 8. Performances of the bound-to-miniband diagonal transition QCD
Fig. 9. Energy band diagram and performances of VLWIR QCDs［26］
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