Award Data

Thin film multilayers of nanometer scale thickness are fundamental to the future of electronics and communications technologies. Chemical depth profiling by ion etching techniques are critical to the characterization of these structures. A fundamental problem with current ion etching technologies is that typical ion energies (~1k eV to 20 keV) create extensive damage and intermixing of nanometer t ...

Reuse in software engineering is an exciting concept that has yet to be reliably implemented. The number of program subroutines that are truly generic (and therefore applicable across all applications) is limited. However, there are specific applications that are required by many organizations, albeit with a set of constraints specific to each organization. This project proposes to design a too ...

The overall quality and the comprehensive strength, in particular, of concrete are critically dependent on the water content in the concrete mixture. It is also essential to know if the concrete has reached a stage of moisture equilibrium before surface finishes such as paint or carpet can be applied. At present, no reliable method or easy-to-use instrument exists for determining the moisture co ...

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This proposal addresses development of CAD software for simulating non-linear optical materials. The software will provide a virtual lab in which experimental setups are simulated. The proposed software is based on the use of a Maxwell differential equation solver, the Finite Difference Time Domain (FDTD) method. This numerical method has been developed by numerous researchers since 1968 and no ...

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There has been a significant increase in the use of integrated-optic devices in military applications ranging from data communication and telecommunication networks to antenna remoting, missile guidance and various sensors and instruments. To guarantee the reliability of all military systems which employ these devices it is crucial that they are evaluated in both real and simulated nuclear enviro ...

Terahertz radiation is an ideal candidate for non-invasive interrogation of concealed objects and substances. As such, there is an increased need for reliable high-quality nonlinear materials for the generation and detection of THz radiation. Zinc telluride (ZnTe) and gallium phosphide (GaP) are the materials of choice for this purpose. However, the performance of these materials varies widely fro ...

It is proposed to develop a miniature guarded hot plate apparatus that can be used to determine the thermal conductivity or thermal resistance of very small specimens (1 to 3 cm square) of thermal insulation materials over a temperature range from at least -40 degrees Celsius to +65 degrees Celsius, with the apparatus having the capability to carry out measurements under controlled environments of ...

THE CONTRACTOR HAS PATENTED TECHNOLOGY FOR A UNIQUE PROCESS THAT DIRECTLY CONVERTS AN ACOUSTIC SIGNAL INTO A VISIBLE ONE IN REAL-TIME WITHOUT ELECTRONIC CIRCUITRY. THIS RELIES ON THE ACOUSTO-OPTICAL PROPERTIES OF A CONTINUOUS LAYER OF LIQUID CRYSTAL THIN FILM LAYER WHICH SERVES AS BOTH THE SENSOR AND THE DISPLAY. THE IMAGE CAN BE VIEWED DIRECTLY BY MEANS OF CCD CAMERA. HOLOGRAPHY PROVIDES FOR BOTH ...