Award Data

"AlGaN-based heterostructures have demonstrated versatility in optical and electronic applications which is practically unmatched by other material systems. The AlGaN/GaN high electron mobility transistors (HEMTs) constitute a leading candidate forsimultaneously realizing ultra-high frequency low noise amplifiers and power amplifiers. The electron transport properties at the AlGaN/GaN interface al ...

"Ballistic missile defense relies upon the deployment of radars that are designed for wideband or multi-band operation to support the following required functions: Accurate target tracking; Object discrimination and classification; Countermeasuresmitigation, and; Nuclear and natural environment mitigation. Additionally, the need to detect and track small targets at long ranges dictates that the r ...

"It is proposed to develop a novel growth system capable of producing large diameter and long Semi-Insulating SiC crystals. The proposed system aims to achieve semi-insulating properties in the crystal by reducing the impurity levels in the reactorassociated with the graphite containment elements. The proposed growth system is based on using gas precursors instead of SiC powder, and uses a nove ...

"During the past 5 years, Mentis Sciences has developed advanced material processes to produce high performance composite radomes for missile interceptor applications. These unique and proprietary processes have enabled us to produce radome prototypes thathave inherently low dielectric constants and loss tangents for Ka band applications through 1500¿F, exceed the structural requirements and hav ...

"In many situations, it is necessary to identify a target rapidly. Here, we offer to demonstrate a novel device that can search through more than ten million images, stored in a one terabyte holographic memory unit (HMU), in a millisecond. Called the superparallel holographic optical correlator (SPHOC), this device can be viewed as nearly two thousands holographic optical correlator (HOC) running ...

"The need for low mass, cost and complexity electric propulsion systems driven by the growing interest in microsatellites to perform high delta-V missions requiring north/south station keeping, orbit transfer, inclination changes and precise formationflying can be enabled by Busek's multi-mode low power Hall thruster. However, state-of-the-art electric propulsion technology is complex and costly ...

"Busek's tandem Hall thruster can deliver precisely controllable, repetitive or single impulse bits of arbitrary magnitude, the latter dictated by the duration of the discharge pulse. To fully capitalize on the pulsed operation of a Hall thruster requiresa cathode capable of rapid starting to minimize the time from the command for thrust to the time the discharge pulse can be initiated. The most ...

"Advances in EO sensors and fiber optic information distribution systems havesimplified the distribution of targeting information among the varioussystems. The requirements for higher levels of functionality and performanceare pushing the levels of integration to a point that can no longer besatisfied by the industry mainstay approach of hybrid assembly. Significantimprovements in fiber-optic syst ...

"Physical Sciences Inc. (PSI) proposes to develop and test a novel chemical atomic iodine laser based on vibrational to electronic (V-E) energy transfer. We will develop and exercise a detailed kinetic model to assist in the design of experiments that willalso be part of the Phase I effort. We will develop a unique device that would couple a PSI 5 kW Microwave Driven Jet (MIDJet) to a chemical f ...

Physical Sciences Inc. (PSI) proposes an experimental and analysis program to determine the relative advantages or limitations of two different high-energy laser waveforms for inflicting lethal damage to metal aerospace targets. Repetitively pulsed (RP)and continuous wave (CW) waveforms will be used to irradiate steel, a typical tactical target material. Metal melting rates will be measured and ...