Award Data

We propose to develop a high frame-rate, large-area, amplitude-only SLM for use in atmospheric correction. The Phase I will demonstrate the concept through the fabrication/evaluation of amplitude-only modulators, as well as an addressing structure that is economical for large-areas. Phase II will scale the addressing structure to 128X128 or higher density, for fabrication of large area amplitude ...

A forward and lateral looking scanning Doppler lidar is proposed for use onboard aircraft to sense and display windshear in the vicinity of the planned flight path, particularly windshear due to the vortex wakes of preceding large aircraft. The goal is to provide the pilot with an assessment, visual display, and warning of the windshear in the vicinity of the projected flight path, with ...

A novel, adaptive waveform coherent LADAR concept is proposed to provide a robust sensor capability to meet Air Force objectives. The LADAR operates at an eyesafe solid-state wavelength in order to achieve a compact, rugged design capable of stand-off ranges of 20 km or more. Simultaneous precision range, Doppler and micro-Doppler target signatures are extracted with an extremely efficient proc ...

Nonlinear optical frequency converters for lasers are impacting a variety of systems including weapons fire control, active beacon adaptive optics, target designation, range finding, and active multispectral imaging ladar. Most next-generation systems require frequency agile transmitters with improved power scaling. For example, there are currently few high average power (1 to 20 kW) frequency c ...

An emerging, powerful trend in electro-optics systems development is the "multifunction sensor. It addresses the need to reduce the volume, prime power requirements, and cost of sensor suites. Further functionality and cost reduction are achieved by distributing the multifunction sensor signals over an optical bus to spatially-separated optical apertures and time multiplexing a centrally located ...

In this task, we seek to assess the technical feasibility of developing tools for automatic information extraction from electronic documents. Our focus is on the development of a domain independent, calendar event extraction tool. Regardless of a document's format, or the domain it represents (e.g., business news, community newspaper), it is possible to extract key data such as name, location/addr ...

FERROELLECTRIC LIQUID CRYSTALS EXHIBIT LOW VOLTAGE, LOW POWER ELECTRO-OPTIC SWITCHING WITH VERY FAST (MICROSECOND) RESPONSE. FLCS CAN BE EMPLOYED IN A SIMPLE GEOMETRY TO MAKE ARRAYS OF ELECTRO-OPTIC WAVEGUIDE COUPLING SWITCHES, SUITABLE FOR MULTI-INPUT, MULTI-OUTPUT APPLICATIONS. THE PROPOSED WORK WOULD DEVELOP LIQUID CRYSTAL, WAVEGUIDE, AND INTERFACE MATERIALS FOR THIS APPLICATION

FERROELECTRIC LIQUID CRYSTALS (FLCS) EXHIBIT LOW VOLTAGE, LOW POWER ELECTRO-OPTIC SWITCHING WITH VERY FAST (MICROSECOND) RESPONSE AND HIGH OPTICAL EFFICIENCY. THESE CHARACTERISTICS MAKE POSSIBLE THE APPLICATION OF FLCS IN COMBINATION WITH A HYDROGENATED AMORPHOUS SILICON (ASI:H) PHOTOSENSING LAYERS TO MAKE OPTICALLY ADDRESSED SPATIAL LIGHT MODULATORS CAPABLE OF FOUR WAVEMIXING, PHASE CONJUGATION, ...

Important emerging technologies such as adaptive optics (e.g., scintillation control), optical signal processing, and miniature displays require spatial light modulators (SLMs) which can control the amplitude or phase of optical wave fronts. In most cases suitable SLMs are not yet available. New SLM technologies and manufacturing processes must be developed in order to enable the economic and pe ...

This proposed program addresses the high temperature (>500oC) decomposition of nitrogen oxides using redox catalysts based on single phase complex metal oxides with constituents selected for their overall influence on binding of oxygen to the catalyst surface and anticipated ease of rereduction of active sites. Catalysts so selected will also possess long lifetimes arising from dispersion of activ ...