High Brightness LEDs based on the (Al, Ga,In)N Materials System--Advanced Technology Materials, Inc., 7 Commerce Drive, Danbury, CT 06810-4131;
Dr. Karim Boutros, Principal Investigator
Dr. Duncan W. Brown, Business Official
DOE Grant No. DE-FG02-97ER82319
Based on a… more
Micromachined SiC Sensors For Harsh Environment Applications--Advanced Technology Materials, Inc., 7 Commerce Drive, Danbury, CT 06810-4131; (203) 794-1100
Dr. Gary M. Smith, Principal Investigator
Dr. Duncan W. Brown, Business Official
DOE Grant No. DE-FG02-97ER82317
Abstract:The ongoing explosion of microwave radar and communications systems calls for improvement in electronically scanned antennas (ESAs). However, current ESAs crafted from multiple individual elements are extremely expensive. Forming an antenna with integrated scanning and impedance matching elements… more
Abstract:The III-V nitrides, (Al, In, Ga)N, are promising materials for high temperature, high power and high frequency devices due to the wide bandgaps, high electron saturation velocity and high electronic mobility transistor (HEMT) structures available in this alloy system. These devices would find… more
Abstract:Virtual displays have tremendous potential in defense applications such as virtual reality training, battlefield support, and information systems. Full color displays require red, blue, and green LED arrays of which only red is commercially available. This program teams ATMI, a recognized leader in… more
Abstract:40345 November 12, 1996
Advanced Technology Corporation
This project will develop new techniques for in-situ nondestructive measurements of key mechanical properties of reactor pressure vessels (RPVs) subjected to irradiation embrittlement. The effort… more
Abstract:Increasing thermal and power loads in circuitry demand electrical components which can operate at temperatures up to 400 C and beyond . A combination of high bandgap semiconductors and improved dielectrics is needed to solve this problem. ATMI has maj or programs in production of both SiC/GaN… more
Abstract:In this program we will develop narrow linewidth AlGaN Bragg reflector lasers suitable as injection seeds for solid-state W lasers in the range of 280 to 330 nm. These systems are compact, light weight, and low-power consuming and ideal for airborne lidar systems. Bragg reflector lasers have never… more
Abstract:Photodiodes have high efficiency since the absorption region thickness is large. However, no GaN p-i-n photodiodes have been reported due to the difficulty in achieving low background doped GaN. This Phase I program seeks to determine the increase in quantum efficiency achievable by the use of a… more
Abstract:Commercially viable silicon carbide device manufacturing processes depend on an ability to grow'low defect density epitaxial layers. Low defect density epitaxial layers start with pristine SiC substrate surfaces. Epi-ready pristine SiC surfaces are not commercially available. The results of… more
Abstract:We propose to develop practical video libraries allowing users to quickly find useful material. Commercial, home, or surveillance video programming captures information in multiple tracks: picture, sound, and closed captioning. Using multiple modalities cataloging information, visual information,… more
Abstract:The goal of this project is to develop and demonstrate a data fusion system for all active and passive submarine acoustic sensors. The system will perform association of all data associated with a common contact. Associated data will be used to provide improved track estimates and classification… more
Abstract:This Phase I project will investigate the feasibility of a submarine passive localization system which will localize and track short duration intentional and unintentional emissions from submarines and weapons. The approach combines radius of curvature ranging using time delay measurements from… more
Abstract:DESCRIPTION (Adapted from applicant's abstract): The goal of this project is to design and develop a lightweight portable headset device capable of recording EEG in human subjects to provide feedback reflecting the onset of drowsiness during their normal daily activities. The Drowsiness Monitoring… more
Abstract:DESCRIPTION: (Adapted from the applicant's abstract) Advanced Bionics is the only U.S. manufacturer of cochlear implants, which restore functional hearing to patients with profound sensorineural deafness. The CLARION implant employs the most sophisticated multichannel speech processing system… more
Abstract:Piezoelectric ceramics in sensors have achieved substantial market penetration. These parts are used widely for heat and climate control, hydrophones, flow sensors, medical and industrial sensing and accelerometers but they have been unsuccessful in gaining significant use in actuators. It… more
Abstract:The goal of this program is to develop a low cost, flexible manufacturing method for the production of Cf reinforced composites for ablation-resistant propulsion components for Theater Missile Defense (TMD) concepts. The matrix material selected for demonstration of the technology will be HfC, a… more
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