Award Data

methyst Research Inc. will design, fabricate and test a high uniformity, large area, low noise infrared trap-detector detector for the 1- 4.5 μm wavelength range. This state of the art detector will have a large area (e.g., 1-1.8 cm diameter active area) with a spatial variability of internal quantum efficiency of less than 0.1 % between 1 μm and 4.5 μm. In addition, the internal quantum effici ...

Biological, chemical and geological activity of soils and groundwater impact agriculture, hydrology, and climate. Sophisticated computer models now include a multitude of interactions that can simulate the complex nature of near, subsurface regions. Improved measurement methods are needed both to provide accurate data to those computer models and to test model predictions. Ideal instruments wil ...

Statement of the Problem or Situation that is Being Addressed Current and future data centers and high-performance computing (HPC) centers need optical communication links to transmit the aggregate data rates that are generated by servers. For these, applications current optical gears that are designed for telecommunication applications are expensive, take large space and do not match to small for ...

Project Summary: Driven by bandwidth hungry technologies such as online video and cloud computing, the skyrocketing growth of global data traffic has no sign of halting. The total amount of content passing through the worlds networks will increase from 800,000 petabytes in 2009 to 35 zettabytes in 2020. To meet the worlds endless appetite for bandwidth, dense wavelength division multiplexing (DWDM ...

Statement of the Problem Isotopologues are a critical tool in monitoring plant hydrobiogeochemical and microbial systems and processes. The most abundant elements utilized and exchanged by plants, microbes and ecosystems are carbon (C), hydrogen (H), oxygen (O) and nitrogen (N), all of which have naturally occurring stable isotope forms that can be used as natural tracers for understanding and int ...

Statement of the Problem or Situation that is Being Addressed: Metals released into the environment from industrial processes, roadways and automobiles, belong to a class of persistent environmental toxins that often remain in contaminated locations for a long time. Water containing trace amounts of radioactive materials is also normally released from U.S. nuclear power plants under controlled, mo ...

PROJECT SUMMARY The US Department of Energy (DOE) Office of Nuclear Science is actively seeking improved designs for cryogenic structural support systems that can achieve up to a 5 to 10x reduction in heat load, while still being able to tolerate radiation doses up to 100 MGy, without degradation in its mechanical and thermal performance. In addition, the cryogenic support systems must not only ma ...

Persistently monitoring of process facilities by recording seismo-acoustic S-A) data over the long- term naturally results in very large quantities of data. After converting the data into more useable forms, skilled analysts must spend time systematically perusing all data for signals of interest, requiring a large investment of labor hours. Furthermore, manual analysis also makes it difficult to ...

The National Academy of Sciences issued a report in February 2008 detailing isotope replacement priorities in the interests of national security [National Research Council, 2008] . 137Cs used in self-contained irradiators was identified as the single most dangerous isotope in the inventory, owing to its long half life 30+ years) and production as cesium chloride salt, which means it ...

Current gallium nitride bulk substrate finishing process technology yields poor structural quality of surfaces. The current process takes longer time and results in defective surface. The wafering process needs to be improved to achieve high performance GaN devices. A novel rapid, mechanical and chemical mechanical process will be explored to rapidly polish GaN substrates. The process will address ...