Award Data

OPTOELECTRONIC SOURCES, INTEGRATED AS MONOLITHIC ELEMENTS ON SILICON VLSI CHIPS, OFFER IMPORTANT ADVANTAGES IN THE TRANSMISSION OF INFORMATION WITHIN THE CHIP OR BETWEEN CHIPS IN ADVANCED COMPUTER SYSTEMS. THE SPEED OF OPTICAL-INTEGRATED VLSI DEVICES IS EXPECTED TO BE CONSIDERABLY HIGHER THAN EQUIVALENT VLSI WITH METALLIC INTERCONNECTS, DUE TO ABSENCE OF THE RC DELAY INHERENT IN THE METALLIC CONDU ...

THE ULTIMATE HIGH-EFFICIENCY CRYSTALLINE SILICON SOLAR CELL DESIGN CONSISTS OF A THIN FILM OF ELECTRICALLY-ACTIVE SILICON EPITAXIALLY GROWN ON AN OXIDE-OVERCOATED, INFRARED-TRANSPARENT GALLIUM PHOSPHIDE (GAP) SUBSTRATE. IN ADDITION TO HIGH CONVERSION EFFICIENCY AND INTRINSIC RADIATION RESISTANCE DUE TO THE THIN ACTIVE LAYERS, THIS NOVEL DESIGN HAS SEVERAL UNIQUE PERFORMANCE ENHANCING FEATURES. THE ...

AN IMPORTANT PROBLEM IN THE AREA OF IR FOCAL PLANE ARRAY IMAGING IS THE FAST AND EFFICIENT MULTIPLEXING AND PROCESSING OF THE SIGNALS FROM THE DETECTOR ARRAY. A NEW APPROACH TO THIS PROBLEM UTILIZING THE RECENTLY DEVELOPED ACOUSTIC CHARGE TRANSPORT (ACT) DEVICE IS PRESENTED. THE ACT DEVICE COMBINES SURFACE ACOUSTIC WAVE AND CHARGE TRANSPORT TECHNOLOGIES TO ACHIEVE A LOW-NOISE, HIGH-THROUGHPUT MULT ...

VARIOUS RADAR AND TARGET SEEKER SYSTEMS ARE BEING DEVELOPED TO OPERATE AT MILLIMETER SYSTEMS. LOW COST, HIGHLY RELIABLE FRONT END HARDWARE IS REQUIRED FOR THESE MUNITIONS. DIELECTRIC INSULAR WAVEGUIDE PLANAR INTEGRATED CIRCUITS FOR THIS PURPOSE WERE DESCRIBED INITIALLY BY EPSILON LAMBDA PERSONNEL IN 1970. SOME OF THESE RADARS ARE OF THE FM-CW TYPE, AND THIS PROPOSAL ADDRESSES THE NEED FOR DEMONSTR ...

THE PROBLEM ADDRESSED IS THE NEED TO STUDY THE FEASIBILITY OF IMPLEMENTING A STANDARDIZED WET-GLOBE TEMPERATURE (WGBT) INDEX DATA ACQUISITION AND RETRIEVAL NETWORK TO SUPPORT COMPREHENSIVE COMPUTERIZED MILITARY OPERATIONS WORLDWIDE. THE ESTABLISHMENT OF A WORLDWIDE DATA COLLECTION NETWORK, MOST PROBABLY AS A PART OF THE EXISTING WORLD METEROLOGICAL ORGANIZATION WEATHER OBSERVING NETWORK, POSES A M ...

CURRENT ALUMINUM MATRIX COMPOSITES WHICH USE ALLOYS REQUIRING SOLUTION HEAT TREATING, QUNEHCING, AND ELEVATED TEMPERATURE AGING SUFFER FROM POOR TOUGHNESS. IT IS EXPECTED THE TOUGHNESS OF ALUMINUM MATRIX COMPOSITES CAN BE SIGNIFICANTLY INCREASED THROUGH THE USE OF 5000 SERIES ALLOYS WHICH HAVE HIGH WORK HARDENING RATES AND GOOD DUCTILITY. ANY LOSS IN COMPOSITE STRENGTH CAN BE COMPENSATED BY ADJUST ...

Higher inlet temperatures for turbine engines will provide significant benefits in fuel efficiency and performance for both military and commercial air vehicles. To accomplish this goal, new generation thermal barrier coatings (TBCs) with superiorreliability and durability will be needed. The currently-used zirconia-based TBCs do not adequately meet thermal conductivity requirements and they suf ...

We propose to design, fabricate, and test a novel x-ray detector for use in industrial CT scanners. This linear detector array combines high spatial resolution and long array length to achieve high-resolution scans on large objects. We propose to supplyan x-ray scanner to the Army Research Laboratory for non-destructive testing that includes this linear array with a commercial flat-panel area de ...

The primary objective of CU Aerospace's Phase II work will be to experimentally characterize the ElectriCOIL flow using advanced diagnostics and to demonstrate lasing of this electrically assisted chemical iodine laser. CU Aerospace (CUA) and theUniversity of Illinois at Urbana-Champaign (UIUC) believe that it is possible to construct a highly efficient electric generation scheme to provide the pr ...

A nearly universal trend in modern technology is the continued integration of systems, and their associated devices, on decreasingly smaller scales. While this has led to personal computers that offer more functionality and faster computational speeds, ithas also spurred the development of hybrid optoelectronic systems on a chip (SOCs). Currently, such SOCs are receiving significant interest fro ...