Award Data

A CRYOCOOLER CAPABLE OF OPERATING UNDER EXTREMELY HIGH ACCELERATION LEVELS IS PROPOSED. THE CRYOCOOLER USES THE LINDE-HAMPSON CYCLE, AND CAN REACH APPROXIMATELY 80 KELVIN. MULTI-STAGE UNITS, TO REACH LOWER TEMPERATURES, ARE ALSO POSSIBLE.

A METHOD FOR CREATING AND AMPLIFYING LONG PULSE LASER WAVEFORMS (CO2, UV LASER, ETC.) IS BEING INVESTIGATED THAT COULD ELIMINATE AUXILIARY E-BEAM IONIZATION AND OPTICAL ISOLATION PROBLEMS ASSOCIATED WITH A MASTER OSCILLATOR/POWER AMPLIFIER (MOPA) CONFIGURATION. FREQUENCY STABILITY COULD ALSO BE IMPROVED BY REMOVING MOST LIMP INDUCED FREQUENCY CHIRP. THE METHOD COULD BE CAPABLE OF PRODUCING A HIGH ...

THE APPLICATION OF HIGH TEMPERATURE SUPERCONDUCTORS IS SEVERELY LIMITED BY THE LOW CURRENT DENSITIES ACHIEVABLE IN BULK MATERIALS, SUCH AS Y1BA2CU3O(7-X), OR 123 FOR SHORT. THE LARGE CURRENT DENSITIES OBSERVED WITHIN INDIVIDUAL GRAINS (AND IN THIN FILMS) ARE REDUCED BY "WEAK LINKS" AT THE GRAIN BOUNDARIES, CAUSED BY MISALIGNMENT OF THE ANISOTROPIC GRAINS AND BY INSULATING IMPURITY PHASES. SOME OF ...

BIPOLAR BATTERIES CAN, IN PRINCIPLE, YIELD ORDERS OF MAGNITUDE HIGHER SPECIFIC POWER THAN CONVENTIONAL, PARALLEL PLATE BATTERIES. SUCH BATTERIES BEGIN TO HAVE PERFORMANCE CHARACTERISTICS SIMILAR TO CAPACITORS AND COULD POSSIBLY BE USED TO REPLACE CAPACITOR FOR SOME APPLICATIONS. BATTERY PERFORMANCE OF BETWEEN 5 AND 2 A/CM2 AT 1.0 V CELL POTENTIAL FOR A TIME PERIOD OF 500 MICROSECONDS WITH ELECTROD ...

A SELF-REGENERATIVE FEEDBACK TECHNIQUE IS BEING INVESTIGATEDTO SUPPRESS THE FORMATION OF SIDEBANDS THAT LIMIT THE SPECTRAL BRIGHTNESS AND GENERAL PERFORMANCE OF PRESENT HIGH-POWER FREE ELECTRON LASERS (FELS). THIS TECHNIQUE DOES NOT INVOLVE INTRA-CAVITY COMPONENTS THAT SUFFER LOSS DAMAGE DUE TO HIGH POWER OPERATION. A POTENTIAL BREAKTHROUGH IN FEL TECHNOLOGY, ANALYSIS AND SIMULATION ARE BEING PERF ...

A compact x-ray laser driver with a high repetition rate is the subject of this phase I project. Most existing x-ray laser drivers are huge (1000s of square feet of floor space), expensive ($10,000,000+), have a low repetition rate (1/hr), are complex and require several PhDs to keep them working. Thus applications of present x-ray lasers are limited. In contrast, the proposed laser will occupy on ...

THE ACQUISITION OF POST BOOST PHASE VEHICLES AND/OR INDIVIDUAL REENTRY VEHICLES BY AN INFRARED SENSOR ON BOARD A SMALL G HARDENED PROJECTILE WHICH SUBSEQUENTLY HOMES ON AND IMPACTS ITS TARGET OFFERS AN ATTRACTIVE APPROACH FOR REENTRY VEHICLE KINETIC ENERGY KILL. THE ACQUISITION, TRACKING, DISCRIMINATION AND GUIDANCE FUNCTIONS REQUIRED OF SUCH AN IR SENSOR RESULT IN A NUMBER OF CRITICAL ISSUES. THE ...

Although there have been many advances in optics for low energy x-rays, (

Sarcos is currently developing a technology that can lead to low-cost millimeter-scale gyroscopes, multi axis inertial sensors, and very compact laser scanning devices. This technology, called Micro Disk Systems (MDS), is based on levitating a small disk above a VLSI substrate using electrostatic fields. AC stabilization of the fields ensures that the disk position remains suitable, and field-base ...

THE REDUCED LEVEL OF INTERFERENCE IN OPTICAL COMPUTERS AND THE LOW THERMAL MASS OF THEIR MATERIALS MAKE OPTICAL COMPUTING SIGNAL PROCESSORS AN ATTRACTIVE ALTERNATIVE FOR STRATEGIC APPLICATIONS. THE NEURAL-NETWORK APPLIED TO SIGNAL AND IMAGE PROCESSING HAS BEEN DEMONSTRATED TO EXHIBIT COMPARABLE PERFORMANCE TO THAT ACHIEVABLE USING MORE CONVENTIONAL APPROACHES. OPERATIONAL AND PERFORMANCE REQUIREME ...