Award Data

ABSTRACT: Silicon-based lasers/detectors have long been desired for owing to the possibility of monolithic integration of photonics with high-speed Si electronics and the aspiration of broadening the reach of Si technology by expanding its functionalities well beyond electronics. The goal of this project is to first develop high quality SiGeSn material and then use it to demonstrate prototype opt ...

ABSTRACT:The LWIR spectrum is well suited for moderate- to long-range free space communications because of its atmospheric window and low scattering by dust, haze, precipitation, and fog. The recent impressive laser development of QCLs is poised to provide the high speed LWIR transmitter for such a free space communication system; a corresponding advance in LWIR detectors is needed to enable the h ...

ABSTRACT:Type II strained-layer superlattice (SLS) materials are predicted to have much lower Auger recombination rates than those of HgCdTe, leading to lower dark currents; however, they are limited by Shockley-Read-Hall recombination via defect states near mid-gap. Hydrogenation is a technique that has proven to be effective in electrically passivating defects in various semiconductor-based devi ...

ABSTRACT: The goal of head-worn display systems is to increase situation awareness and reduce operator workload. The urgent need is for higher image resolution and lower system latency, while meeting constraints on head-borne weight and power. Current processor solutions cannot meet increased requirements. The challenge is that power consumption is proportional to the amount of data being handled, ...

ABSTRACT: An organizational culture that promotes problem solving is necessary for success in any organization. Nondestructive Inspection (NDI) is the inspection of a structure or component in any manner that will not impair its future usefulness. The purpose of the inspection may be to detect flaws, measure geometric characteristics, determine material structure or composition, or it may characte ...

ABSTRACT:STTPBENEFIT:STTP

At present, trains use various dissipative braking systems to slow and stop, and this significant braking energy is ultimately converted to heat and wasted. APEI, Inc. has proposed a hybrid tender which can capture and reuse a significant fraction of this braking energy (at least 50%). The hybrid tender draws power from the rails using a regenerative braking technique rather than by being electr ...

The Federal Railroad Administration’s (FRA) Automated Track Inspection Program uses optical systems such as cameras or laser-based systems to monitor rail performance throughout the country. These systems are hindered by adverse weather conditions that allow water, dirt and mud to coat their optical components resulting in unwanted maintenance costs. Thus FRA is seeking a low-cost, practical s ...

This Small Business Innovation research Phase I proposes the development of a practical and reliable in-vitro test for detecting the evidence of Mycobacterium tuberculosis (MTB) infection as an alternative to the tuberculin skin test (PPD-TST) and to the interferon gamma release assays (IGRAs). The proposed methodology will be a powerful detection technology in clinical diagnosis owing to its dete ...

ABSTRACT: To significantly reduce procurement overhead and recognizing the mission strategic importance of developing modular power electronics for interfacing the battery to the spacecraft bus, APEI, Inc. is proposing to develop a novel multi-module, inherently scalable, high power density, radiation-hardened, intelligent battery module. The proposed development will focus on the following main ...