Infrared sensitization of triphenylamine-containing polyimides

A study is made of the sensitization of triphenylamine-containing polyimide s in the IR and visible regions of the spectrum (500-1200 nm). These polyim ides are the most promising of the aromatic polymers for making recording m edia; when sensitized by the most efficient dyes for the IR region of the s pectrum, the photosensitivity at wavelength 1060 nm is 5 x 10(3) cm(2)/J, w hich is an order of magnitude greater than that achieved for other polymers . (C) 2000 The Optical Society of America. [S1070-9762(00)01006-X].