Award Data

This Phase I project has two primary objectives. The first objective is to evaluate the feasibility of a fully ion implanted fabrication process based on the heterodimensional 2-D MESFET. The new device, the 2-D JFET, will have p+ ion implanted sidegates which laterally modulate a thin, highly doped n-type conducting channel. The 2-D JFET should have excellent high speed, low power characteristics ...

The proposed effort will apply advanced methods of hybrid learning to problems of detection and identification of sensory events (e.g., boost phase evens). Our approach aims at building a vision system capable of hybrid learning, in which symbolic (rule-based) and subsymbolic (neural network) strategies are integrated to achieve high efficiency and accuracy both in learning human comprehensible se ...

Novel ionic self-assembled monolayer (ISAM) processes for the fabrication of advanced electronic materials and devices will be developed through this program. Revolutionary ISAM methods to create nanostructured multi-layer inorganic/organic thin-films offer major advantages over conventional manufacturing processes, since the process is simple, low-cost and environmentally friendly in that no vola ...

F&S and Virginia Tech will cooperatively develop high performance protective ionic self-assembled monolayer (ISAM) organic/inorganic coatings for space-based optical and structural components, and work with Litton to upscale practical coating manufacturing. Revolutionary ISAM methods of creating multi-layer protective nanopartwcle films offer major advantages over con-ventional coating processes, ...

We propose to design and fabricate an adaptive beam expander that can be switched between two magnifications. Specifically, the beam expander provides diffraction-limited performance for laser radar beams with diameters of 1 mm and 3 mm. The adaptive beam expander is lightweight, and it has no moving parts. Because the beam expander is an afocal system, it operates on both outgoing and incoming be ...

MicroFab Research (MFR, Inc.) proposes to apply the techniques of micromachining to aid in the fabrication of millimeter wave components, thereby reducing manufacturing expenses. Many microwave applications such as radar and communication systems would be improved by shifting to higher frequencies, provided new lower cost manufacturing techniques can be found. A manufacturing technique is presente ...

Microwave Technologies Incorporated is proposing the development of a very compact radio-frequency (rf) electron beam accelerator which appears to be well-suited for BMDO's directed energy applications. This novel concept employs a single short rf cavity operating in circular polarization to accelerate a low-energy ma ~netized pencil beam to energies that range from 2 to 10 MeV. The proposed accel ...

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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 achievement in realizing low-loss waveguides on any surface of interests using photolime gel polymer motivates us to further investigate the feasibility of employing such a unique material as a multi-functional polymer that can provide modulation, switching, wavelength conversion and amplification simultaneously on any optoelectronic substrate of interest. In this program, we propose to resear ...