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Very long wavelength infrared (VLWIR) detectors are highly needed for midcourse phase missile defense. Blocked impurity band detectors are capable of sensing at these wavelengths but require extremely low temperatures, in the 10K or less range. The InAs/GaSb Type II heterostructure system offers unique design flexibility for new innovative detectors. By incorporating dark current reduction techniq ...

The MDA's request to detect, track and discriminate long range targets requires infrared focal plane arrays (IRFPAs) that have higher sensitivities, longer cutoff wavelengths (>14 µm), larger formats (> 256 x 256), and higher operating temperatures than the current infrared technology. PbSnTe is an ideal material for the MDA's requirements. Its carrier mobilities and quantum efficiencies are comp ...

End-to-end communications systems are often so complex that system designers have difficulty keeping track of the constraints, trades, interface requirements, and interdependencies among components. The Communications System Taxonomy (CommTax) and Toolkit proposed herein represents further refinement of an innovative tool that Infinite Global Infrastructures has recently developed internally to as ...

C2BMC is an important component of BMDS. The logistics support tail sustainment challenges in C2BMC are related to the unusual spiral development process employed by C2BMC. Formal metrics such as MTTR and MLDT have not been defined. Nor have spare parts analysis, training needs analysis or documentation support issues been formalized. There is enormous scope for both process re-engineering and tec ...

Many advanced HgCdTe (MCT) infrared detector structures are grown by the molecular beam epitaxy (MBE) technique, which is especially sensitive to small imperfections, impurities, precipitates, and polishing damage on the substrate surface. In order to achieve very high crystalline quality MCT structures, the substrate surface must be of superior quality (MBE-quality). EPIR demonstrated the ability ...

Lead in household paint and dust is a serious health hazard, as low-level lead exposure can result in a number of adverse health effects, especially in children. Onsite and real-time detection and quantification of lead in paint/dust are very important to homeowners and certified lead-based paint removal professionals. Toward this end, both field-portable equipment (such as X-ray fluorescenc ...

The primary objective of CU Aerospace's Phase I work will be to investigate innovative iodine injection concepts for the chemical oxygen-iodine laser (COIL) that improve mixing at higher total pressures. The designs will be made to significantly improve the pressure recovery of COIL systems while retaining efficiency. The results of the Phase I research will lay the foundation for developing a h ...

identified needs for the thermal control and ESD functions of the Prometheus Program's hardware for the heat rejection system for the planned nuclear system. These efforts can also serve uniquely the (CEV) radiator systems needs. The TCMS for the radiators of the both CEV and Prometheus missions need to operate at higher temperatures and provide the space environment stable low ratio of (αs/εT) ...

In Topic X1.03 NASA (JPL) is seeking to extend and implement long distance exploratory surface rover missions to gain knowledge of surface topology and roughness. The benefit is to identify suitable sites for future landings of human or robotic missions and to aid in pinpoint landings. High resolution millimeter wave radar sensors provide a low cost, reliable way for a Moon or Mars Rover to dete ...

In this SBIR Phase I project, Vega Wave Systems, Inc. will develop and demonstrate a novel InGaP-GaAs heterojunction bipolar transistor power amplifier for long-range X-band communications. The Phase I objective is to design and fabricate a new type of heterojunction bipolar transistor in order to achieve high device performance for power amplifiers (PAs). In addition, monolithic power combiners ...