Award Data

The III-V nitrides have recently emerged as the primary material system for UV/blue light emitters. Higher bandgap energy (Al,Ga)N alloys are currently employed as cladding layers for GaN and (In,Ga)N active region LEDs and laser structures. Lattice mismatch between the cladding and active regions, however, restricts both the thickness and composition of the layers which in turn limits the operati ...

Large power handling systems of 1KW to 150KW are required in a many applications ranging from aerospace to consumer electronics to industrial power systems and transportation. Conventional electronic systems, based on silicon or gallium arsenide devices, require a large number of devices enhanced with extra heat sinking and sophisticated control systems to ensure synchronous operation. The extra ...

We propose to develop manufacturable high-temperature superconducting (HTS) Josephson junctions on silicon substrates. This technology will make available a wide range of silicon fabrication methods, allowing superconducting and semiconducting circuit elements on the same chip. The ultimate goal is to provide high performance monolithic rf components combining active and passive superconducting co ...

Phase I proposes to demonstrate an easy-to-operate, inexpensive room temperature neutron detector based on boron-doped diamond. The detector would produce an immediate signal related to low-level neutron irradiation. The concept exploits the high neutron absorption cross section of B-10, which results in excellent sensitivity. The charge carriers generated in the diamond by a neutron absorption ev ...

Essential Research, Inc. proposes to build a thermophotovoltaic (TPV) electric generator using a solar concentrator heat source with thermal storage capability, a selective emitter, and a photovoltaic cell. The operation point of the heat source and selective emitter will be approximately 1700K. The moderate operating temperature was chosen to provide a system energy conversion efficiency of great ...

OFT Associates in collaboration with Andrew Company proposes to develop an in-fiber broadband phase modulator that would eliminate the need for an integrated optics modulator and provide the means to rapidly switch and tune fiber Bragg grating (FBG) filters. The proposed Phase I effort will determine the technical feasibility of realizing broadband phase modulation and electrical FBG tuning by ind ...

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Extracting knowledge from the vast amount of rapidly-evolving data handled by image processing programs, situation assessment and decision support systems, and many other applications important to the BMDO mission is a demanding task requiring powerful computer hardware and appropriate software architectures. This project addresses the software required for intelligent, real-time knowledge process ...

Cornerstone Research Group, Inc. (CRG), and partner University of Dayton Research Institute (UDRI) will develop a suite of materials and processes as enabling technology for achieving the radical production time and cost reductions envisioned by the replication approach to producing composite mirrors for aerospace optics. CRG will formulate and demonstrate a high-performance polymer resin cured a ...

Cornerstone Research Group (CRG) proposes to develop and evaluate a novel encapsulation coating that protects thin film photovoltaic (PV) cells for the High Altitude Airship (HAA). The High Altitude Airship (HAA) is an unmanned, powered airship that is currently being developed to maintain a relative geostationary position at 65,000-70,000 feet. It is powered by regenerative fuel cells coupled wi ...