Photothermoplastic recording of half-tone images: Technological studies ofthe minimization of the defects of an information medium

A process has been developed for low-defect high-resolution photothermoplas tic materials for aerospace picture-taking, based on high-sensitivity CdSe and SeAsTe films on a rigid substrate with a compact structure, including a n internal optical raster with a frequency of 100-600 mm(-1), a thermal-dev eloping transparent electrode, and separated optical input and output. The process can be used to create detectors of the CCD-array type, with up to 4 0 000 X 40 000 pixels. (C) 1999 The Optical Society of America. [S1070-9762 (99)00601-6].