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The objective of this proposed effort is to identify and develop new and robust buffer layer materials for the recently developed metal-coated YBCO superconducting tape technology. While the current choice of yttria stabilized zirconia (YSZ) and cerium oxide as buffer layers has been appropriate for demonstration of coated tapes with current densities over 106 A/cm2, they may not serve all the req ...

The traceability of on-wafer calibration standards has long been an issue among the microwave measurement community, and the proliferation of new calibration methods, elements, and applications only exacerbates the problem. This diversity in calibration needs has made traceability of a physical reference impractical. As a result, the NIST developed a procedure which can compare on-wafer calibrat ...

WE PROPOSE TO DEVELOP A NEW METHOD OF RESIN TRANSFER MOLDING (RTM) FOR ADVANCED COMPOSITES MANUFACTURING IN WHICH THE HEAT REQUIRED FOR CURING IS PROVIDED BY PASSING AN ELECTRICAL CURRENT THROUGH ELECTRICALLY CONDUCTIVE GRAPHITE FIBERS IN THE PREFORM. THIS METHOD, WHICH WE DESIGNATE RESISTIVE-HEAT CURED RTM OR RHCRTM, WILL OFFER THE FOLLOWING ADVANTAGES OVER CONVENTIONAL RTM IN WHICH HEAT IS PROVI ...

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The proposed work is intended to lead to the development of a revolutionary class of photon detectors capable of operating at ambient temperatures with fast response times. Specific benefits of the proposed detector include: i) Low cost versions can readily be reduced-to-practice due to inherent simplicity of the sensing element compared to existing photon or thermal detectors, ii) there is no nee ...

We propose here a ferroelectric trigger for a UWB source with high voltages and operated at high rep rate. This trigger will be simpler and more reliable than existing designs, and will be implemented at lower cost. In addition, this trigger will allow operation at much higher rep rates than existing designs. Finally, the proposed switch will have a lower jitter than competing designs. During Pha ...

The near-field scanning optical microscope can supply information on the shape and electrical properties of surfaces with nanometer resolution. The quantitative interpretation of images is difficult because of the difficulty of electromagnetic field solutions in the near-field limit. We propose to supply software to aid in this analysis. The finite-element programs generate two and three-dimension ...

We propose a systematic investigation of crystalline Si structures as their dimensions are reduced to quantum sizes (5-10 nm). For convenience, we have chosen Si on insulator (SOI) material for optical and electrical characterization. Our nanofabrication approach relies on simple laser interferometric lithography techniques that are uniquely adaptable to large area manufacturing. Suitable applic ...

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