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We propose the experimental investigation of a frequency-doubling millimeter-wave amplifier (MWA) that has diverse applications such as short-wavelength radiation sources for sensors and associated systems. The MWA is proposed as a very compact, light-weight RF source in which an electron beam is injected into a deflection cavity operating at the drive frequency. A transverse magnetic field produc ...

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A novel nitrogen beam source will provide 5 eV atomic and molecular nitrogen to a 0.5 cm diameter circle with a flux of 10(21)/cm(2)/sec. Larger areas can be irradiated with a lower flux (eg. 10(18)/cm(2)/sec over a 2" diameter wafer). The technique will put minimal gas load into the chamber so it will be compatible with ion pumped MBE systems. The source will be used in an attempt to synthesize c ...

Multispectral imaging has become a valuable tool in tactical imaging scenarios due to the ability to expose camouflage, identify airborne toxins and fuel plumes, and the ability to provide night vision through the use of infrared imaging. Micro-bolometer arrays work well in these situations by creating a single sensor which is sensitive from the visible to long wave IR imaging regions. The microbo ...

In this research, we will investigate and develop a new class of mid-infrared (3-5 pm) diode lasers vVhich was first proposed by the PI. These lasers utilize interband transitions for photon emission in a staircase of Sb-based type-ll quantum wells. In this way, we retain the advantages of cascaded tunneling injection and wavelength tunability, while circumventing the fast phonon scattering loss e ...

The development of a microwave curing method for resin matrix composites and jointing/bonding epoxy is proposed. This technique will take advantage of the ability of vapor-grown carbon fiber (VGCF) to absorb microwave energy with high efficiency. By adding VGCF to resin matrix composite material and epoxy, we hope that the materials can be processed by microwave irradiation in a manner that result ...

The ultimate purpose of the proposed R&D is to develop and demonstrate an innovative software development environment which supports the engineering, analysis, development, test, maintenance, and reuse of software for embedded, heterogeneous, real-time systems. The proposed approach is innovative in two respects: (1) it is based on the integration of two best-of-breed environments, ObjecTime/ROOM ...

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For motor, generator, transformer, and transmission line applications, demonstration projects have been conducted using Bi:2223 high temperature superconductors. There is the desire to use these conductors in AC applications at temperatures from 20-77K. Currently these conductors use silver or high silver alloys for their sheath material, this high silver content and the bridging of filaments re ...

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