Award Data

A NOVEL LIQUID CRYSTAL BEAM IS PROPOSED. THE ACTIVE MATERIAL PRODUCES ANALOG PHASE MODULATION (NEARLY 2 PI) WITH A SUB-MICRON LAYER, SWITCHING AT MICROSECONDS. TO ACHIEVE LARGE STEER ANGLES AND HIGH DIFFRACTION EFFICIENCY, HIGH SPATIAL FREQUENCY STRUCTURES WITH ANALOG PHASE ARE REQUIRED. THE NEMATIC MATERIALS CURRENTLY USED FOR SUCH DEVICES EXHIBIT SLOW RESPONSE TIMES, AND LIMITED RESOLUTION. WHIL ...

Modified computer-to-memory interface architecture and memory management executive software provide substantial increases in multiprocessor system reliability and throughput. The MIL-STD-1750A computer interface has a local cache memory using 8-word pages. The common main memory has fault tolerant data and address buses and fault tolerant data storage, with a page long word length, and hardware ar ...

Silicon particles of miniscule dimension, so-called "quantum particles," will luminesce intensely when exposed to ultraviolet light. Using proprietary procedures, electrodes will be applied to these ultra-small quantum particles so that they may be made to electroluminesce. The process voltages will be compatible with the voltages for transistor circuitry. This work offers the promise of joining d ...

To continue the development of low cost carbon composite material, this program is intended to demonstrate the ability to fabricate net shape tubular space truss components using co-braided carbon and thermoplastic (PEEK) yarns. The thermoplastic yarn, when processed through an autoclave cure using high pressure and temperature, will fuse the high modulus carbon fibers together to form a rigid fin ...

HIGH TEMPERATURE SUPERCONDUCTING MICROWAVE PASSIVE COMPONENTS PROMISE TO SHRINK BY ONE TO TWO ORDERS OF MAGNITUDE, WHILE LOWERING THEIR LOSSES. SUPERCONDUCTING FILTER STRUCTURES, DELAY LINES AND HIGH-Q RESONATORS ALREADY HAVE BEEN DEMONSTRATED FROM LTHROUGH K-BAND AT TEMPERATURES UP TO 80K. REAL SYSTEMS ADVANTAGES ARE EXPECTED FROM THE INTEGRATION OF SUCH COMPONENTS INTO A COMPACT SUBSYSTEM THAT J ...

BRIGHTNESS IS ONE OF THE MOST IMPORTANT PROPERTIES OF THE NOVEL X-RAY SOURCES, AND THE X-RAY LASER IS THE BRIGHTEST X-RAY SOURCE AVAILABLE. THESE BRIGHT X-RAY SOURCES ARE RAPIDLY BECOMING THE TECHNOLOGICAL BASE TO ADDRESS NEW NEEDS OF DIVERSE MARKETS, WHICH INCLUDE THE MICROSCOPY OF LIVE SPECIMENS WITH PREVIOUSLY UNACHIEVABLE DETAILS (30 NM) AND HIGH RESOLUTION (BETTER THAN 100 NM) LITHOGRAPHY FOR ...

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Current difficulties in the growth of diamond thin films lie in their metastable characteristic and the requirements of non-equilibrium heteroepitaxial techniques for the single crystal growth. Sequential exposure of reactants using a microwave hydrogen plasma enhanced Atomic Layer Epitaxy (PE-ALE) reactor is proposed to promote two dimensional nucleation. In particular, use of halocarbon species ...

Sensors Unlimited will develop an infrared camera that sees in the dark, yet costs less than $10,000 and requires no cooling. Present-day cameras for the near-infrared spectrum (wavelength range 1-3 microns) require liquid nitrogen cooling which makes them bulky and expensive. Our novel camera will be based on an array of 128 X 128 detector pixels of indium gallium arsenide (InGaAs), which has hig ...

Sensitive operation of passive sensors in a radiation environment requires a means to eliminate the signals caused by ionizing radiation. Black Forest Engineering proposes a signal processing technique to delete these gamma-spike signals that can be integrated into each unit cell of an infrared planar hybrid sensor chip assembly. This technique is applicable to both scanning and staring systems wi ...