Award Data

Longwave infrared focal plane arrays (FPAs) based on Type-II InAs/GaSb-based strained layer superlattice (SLS) photodiodes show good performance at the current time. A key remaining challenge is the reduction of dark current, dominated by pixel surface leakage in FPAs and low minority carrier lifetime in the bulk material. We propose to address the former in this Phase I and develop a unique sche ...

Thermal batteries are a power source for most MDA weapons systems. Some of these applications place severe constraints on battery weight and size. The key components of thermal batteries are typically made by hydraulically pressing powders into"pellets". The pellets must be greater than a minimum thickness to avoid breakage, and for batteries that must supply high current for a short time this ...

In Phase I we developed a novel infrared photodiode based on Type-II InAs/GaSb strained layer superlattices (SLS) that showed pingpong dualband action, wherein the spectral response of the diode was switched between extended midwave (~ 8 micron cutoff) and longwave (~ 10 micron cutoff) infrared by the polarity of the voltage bias applied across it. In Phase II we will improve quantum efficiency i ...

"SSSC is pleased to propose the development and delivery of a Hostile Fire Indication Sensor (HFIS) based on the Phase I design concept. The resulting system will limit the number of circuit card assemblies to two: one for the short wave infrared (SWIR)

Mitigation of Single Event Upset (SEU) to electronic devices and components has traditionally been and expensive problem to overcome. Dramatic improvements in electronics technology have rendered many prior SEU solutions ineffective and have created theneed for more advanced and innovative design tools. One of the more promising SEU solutions has been triple modular redundancy (TMR), where each ...

This proposal addresses BMDOOs requirement for enhancing the affordability and performance characteristics of kinetic kill vehicles (KKVs) by recommending a program to investigate the use of hafnium nitride-based divert and attitude control system (DACS)components. In this program, thin-walled HfN liners will be fabricated in net-shape fashion via gas phase nitridation of hafnium articles. Syst ...

The quest for lower cost components and higher performance propulsion systems in Kinetic Kill Vehicles motivates the investigation of low cost, highly oxidation/erosion resistant materials for nozzle throats and other hot gas path applications.Exothermics has recently conducted tests of HfN components with encouraging results. These results indicate that oxide melting point may not be a critical ...

More than 6,000,000 auto accidents occur in the U.S. each year, with about one third resulting in injury and 40,000 resulting in fatality. Approximately thirteen percent of these crashes involve pedestrians. A much broader group of generalized roadway obstacles including pedestrians, other automobiles and non-fixed objects, is responsible for over ninety percent of the accidents. A reasonably p ...

Spectral sensing is emerging as an enabling missile defense technology for hard bodytracking and identification. Multiple samples of the spectra from hard body targetsassist in determining the target temperature and become inputs to discrimination andidentification algorithms. These targets are not burning and are potentially at ornear room temperature; hence, the ideal hard body sensor operates i ...

A lightweight, low-cost, internal detector gain, solid state imaging LADAR receiveris proposed. This photodetector has the advantage of increased optical gain withdecreased incident power. This detector characteristic is attractive for LADARapplications with weak target signals. In phase I, the LADAR specific detector willbe modeled and tested. In Phase II, the semiconductor-based internal gainpho ...