Accession Number : ADA190391

Title :   Infrared-Sensitive Spatial Light Modulator.

Descriptive Note : Final rept. 1 Jun 84-20 May 87,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF ELECTRICAL ENGINEERING AND COMPU TER SCIENCE

Personal Author(s) : Warde, Cardinal

PDF Url : ADA190391

Report Date : Nov 1987

Pagination or Media Count : 30

Abstract : This final report summarizes a preliminary investigation of an infrared-sensitive spatial light modulator that is designed to respond to write light in the 3 to 5 micrometers wavelength range. The device can be read out with visible light and, as such, is intended to function simultaneously as an image wavelength upconverter and light modulator. The device design employs a thin-film InSb photoconductor that addresses a DKDP crystal which is cooled near the Curie temperature (-51 degrees centigrade) of DKDP. Preliminary results are reported on: thin flash-evaporated films on InSb; the development of the cooled DKDP substrates; design and fabrication of the modulator vacuum cell; theoretical modelling of the device performance.

Descriptors :   *INFRARED IMAGES, *HIGH SENSITIVITY, *LIGHT MODULATORS, REAL TIME, SIGNAL PROCESSING, VISIBILITY, LIGHT, GALLIUM ARSENIDES, PHOTOCONDUCTORS, EQUATIONS, SPATIAL FILTERING, INDIUM ANTIMONIDES

Subject Categories : Infrared Detection and Detectors
      Recording and Playback Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE