Award Data

ACOUSTO-OPTIC (AO) BRAGG CELLS OFFER THE ADVANTAGES OF RELATIVELY LOW POWER CONSUMPTION AND THE ABILITY TO PRODUCE MULTIPLE OUTPUT OPTICAL BEAMS OF VARYING INTENSITY FOR ONE BEAM ENTERING THE SYSTEM. THE MAJOR DISADVANTAGE OF THEAO DEVICE IS ITS ACOUSTIC WAVEFORM PROPAGATION DELAY, WHICH SETS A FUNDAMENTAL LIMIT ON DEVICE SPEED. ELECTRO-OPTIC (EO) DEVICES, ON THE OTHER HAND, OFFER AN ORDER OF MAGN ...

THE CHEMICAL MECHANISMS OF CHEMICAL VAPOR DEPOSITION (CVD) OF DIAMOND AND OTHER ELECTRONIC MATERIALS ARE AT BEST POORLYUNDERSTOOD. DURING PHASE I, WE SHALL CONSTRUCT A LOW PRESSURE CHEMICAL VAPOR DEPOSITION (LPCVD) REACTOR EQUIPPED WITH AN ION BEAM SURFACE PROBE AND DEMONSTRATE ITS UTILITY IN DETERMINING SURFACE STOICHIOMETRIES UNDER ACTUAL DEPOSITION CONDITIONS IN-SITU. THE GOAL IS TO PERFECT AND ...

PRESENT METHODS UTILIZED FOR THE FABRICATION OF INTEGRATED CIRCUITS ARE BASED ON MICROLITHOGRAPHY, EITHER OPTICAL, X-RAY, ELECTRON BEAM, OR ION BEAM. THESE METHODS ARE SIGNIFICANTLY LIMITED IN THE PRODUCTION OF SMALLER SCALE FEATURES (E.G., NANOLITHOGRAPHY), BY THE WAVELENGTH OF THE RADIATION (OPTICAL AND X-RAY LITHOGRAPHY) AND/OR BY THE COMPLEXITY AND COST OF THE EQUIPMENT (X-RAY AND ELECTRON AND ...

AN ARRAY COMMUNICATIONS COPROCESSOR (ACC) ARCHITECTURE HAS BEEN DEVELOPED THAT PROVIDES AUTOMATIC, ADAPTIVE, AND DYNAMICALLY CONFIGURABLE INTER-PROCESSOR COMMUNICATIONS AND IS COMPATIBLE WITH MOST COMMERCIALLY AVAILABLE STATE-OF-THE-ART COMPLEX INSTRUCTION SET COMPUTERS (CISC) AND REDUCED INSTRUCTION SET COMPUTERS (RISC). IN THIS INVESTIGATION, THE ARRAY COMMUNICATIONS CONTROLLER IS BEING IMPLEMEN ...

ONE APPROACH TO COMMANDING KINETIC ENERGY PROJECTILES IS TO GUIDE THE PROJECTILE TO THE TARGET VICINITY BY A CODED LASER BEAM. A RELATIVELY NARROW FIELD-OF-VIEW STRAPPED-DOWN SEEKER THEN ACQUIRES THE TARGET ANDCLOSES IN FOR THE KILL. A LIGHTWEIGHT, ELECTROMAGNETIC INTERFERENCE (EMI)/NUCLEAR INSENSITIVE, ULTRA-RUGGED, NO-MOVING PARTS, NONELECTRONIC, FLUIDIC ELECTRO-OPTICAL ENERGY CONVERSION DEVICE ...

CRYOGENIC COOLING OF ADVANCED SENSORS IS BEING INVESTIGATED, PARTICULARLY CRYOCOOLERS THAT USE MINIATURE HIGH-SPEED TURBOEXPANDERS.A MINATURE ELECTROMAGNETIC BEARING (EMB) DESIGN FOR CRYOGENIC TURBINES IS BEING UNDERTAKEN TO OVERCOME THE LIMITATIONS OF GAS BEARINGS. THE PROPOSED EMB, BECAUSE IT IS NON-CONTACTING, IS EXPECTED TO SHOW ULTRA-HIGH RELIABILITY OVER EXTENDED PERIODS OF CRYOCOOLER OPERAT ...

THE PROPOSED PROJECT WILL DEVELOP MATERIALS AND SUPPORTING THERMAL TECHNOLOGY LEADING TO DESIGN OF HIGH POWER PULSE CONDUCTORS FOR SPACE APPLICATIONS. IN PHSE I WE WILL EVALUATE AN EM GUN SYSTEM, IDENTIFY ALTERNATIVE MATERIALS AND THERMAL APPROACHES FOR SELECTED COMPONENTS, AND IDENTIFY TECHNOLOGY REQUIREMENTS. COMPONENT DEVELOPMENT FEASIBILITY AND BENEFITS WILL BE DEFINED.

THE NEED FOR INCREASING THE SENSITIVITY OF SPACE-BORNE SENSORS WILL REQUIRE DEVELOPMENT OF LONG-LIFE, HIGHLY EFFICIENT HELIUM LIQUIFIERS. CONVENTIONAL HELIUM LIQUIFIERS EMPLOY A JOULE-THOMSON EXPANSION VALVE TO EXPAND THE HELIUM AT TEMPERATURES BELOW ABOUT 10 DEG K. IT HAS BEEN SHOWN THAT GAINS OF UP TO 30% IN OVERALL CYCLE EFFICIENCY CAN BE OBTAINED IF THE JOULE-THOMSON VALVE IS REPLACED BY AN EX ...

THE PROPOSED PROJECT WILL DEMONSTRATE THE FEASIBILITY OF EMPLOYING ELECTRON TRAPPING (ET) MATERIALS WITH FIBER OPTICS FILAMENTS FOR USE AS MICROPROBE RADIATION DOSIMETERS.THE ET MATERIALS TM CAN BE INTERROGATED BY NEAR-INFRARED TO PRODUCE VISIBLE OUTPUT SCALABLE TO RADIATION DOSES AT THE FIBER TIP. PHASE I WILL ASSESS THE PERFORMANCE OF SUCH MATERIALS AS MICROPORBE RADIATION DETECTORS INTEGRATED W ...

A NEW CLASS OF OPTICAL SOLID STATE MATERIALS HAVE BEEN DEVELOPED. THE NEW MATERIALS DISPLAY LARGE ELECTRON TRAPPING (ET) AND ARE VERY EFFICIENT. THEY COULD BE USED FOR OPTICAL READ/WRITE/ERASE MEMORIES AND FOR OPTICAL COMPUTATIONS. FOR OPTICAL PROCESSING THE TRAPS IN THE ET MATERIALFS CAN BE FILLED AT THE EXPENSE OF AN INDEPENDENT "POWER SUPPLY" LIGHT SOURCE. THE PHASE I WORK WILL CHARACTERIZE THE ...