For low-light-level infrared image and signal processing there is an urgent need for a high resolution, high-sensitivity Infrared- sensitive Spatial Light Modulator (IRSLM) that can be read out at visible wavelengths. The existing commercially available spatial light modulators such as the microchannel spatial light modulator and the Cds liquid crystal light valve are not capable of responding at these wavelengths. However, recent developments at Quantex, Inc. in electron trapping materials have led to infrared- to-visible upconversion phosphors that appear to have sufficient conversion efficiency and spatial resolution to drive a highly- sensitive optically-addressed spatial light modulator such as the new family of charge transfer spatial light modulators invented at Optron Systems, Inc. Therefore, Optron Systems and Quantex propose to explore the development of a new IRSLM that consists of a special liquid-nitrogen-cooled electron trapping material that emits visible light upon excitation with infrared image and a high-sensitivity Charge-Transfer Liquid-Crystal Light Valve (CTLCLV). Both the IRSLM and the CTLCLV are expected to stimulate the field of optical computing, parallel optical image processing, astronomical imaging, multispectral image fusion, machine vision and industrial inspection.

Agency
National Science Foundation (NSF)
Institute
Division of Industrial Innovation and Partnerships (IIP)
Type
Standard Grant (Standard)
Application #
8861321
Program Officer
Ritchie B. Coryell
Project Start
Project End
Budget Start
1989-01-01
Budget End
1989-09-30
Support Year
Fiscal Year
1988
Total Cost
$50,000
Indirect Cost
Name
Optron Systems Inc
Department
Type
DUNS #
City
Waltham
State
MA
Country
United States
Zip Code
02451