Fig. 1. Structure of dual-color mid-wavelength superlattice infrared detectors （left） and band structure diagram （right）

Fig. 2. XRD ω-2θ scan of InAs/GaSb dual-color superlattice samples

Fig. 3. AFM test image of dual-color mid-wavelength superlattice infrared detectors

Fig. 4. The dark current and dynamic resistance-area product as a function of the applied bias

Fig. 5. Spectral response of dual-color mid-wavelength superlattice infrared detectors

Fig. 6. Infrared images of dual-color mid-wavelength infrared InAs/GaSb superlattice focal plane arrays：（a） the MW1 band image； （b） the MW2 band image