Mid-infrared 2-color infrared screen projector using RCICLED technology with high reflectivity mirrors and wavelength adjustment layers

The goal of this work is to employ resonant cavity interband cascade light-emitting diodes (RCICLED) with high reflectivity mirrors and intra-cavity wavelength adjustment layers to achieve 2-color, high brightness, high dynamic range LED arrays for infrared scene projection. Phase I efforts will focus on design, fabrication, and testing of  a single RCICLED device with high brightness and low crosstalk at the competing wavelength. We will consider various high-reflectivity mirror in phase I, including wafer-bonded Gallium Arsenide/Aluminum Gallium Arsenide (GaAs/AlGaAs) mirrors, metal/dielectric mirrors, and deposited dielectric mirrors. We will test electrical and optical properties, and also demonstrated compatibilty with our partner's RIID arrays. The phase I option work will employ improvements learned from phase I testing, and also demonstrate two colors on a single wafer using variable wavelength adjustment layers.