Sensitization of various structured polyimides in the wavelength range 400-750 nm has been studied. Injection sensitization with thin films of nanocrystal CdSe, structural-chemical sensitization with active acceptors (flullerenes), as well as spectral sensitization with various dyes have been investigated. It has been concluded that the application of polyimides as a photosensitive medium allows characteristics ofnumerous devices to be improved.

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St.-Petersburg, Russia . ABSTRACT . \. :For amorphous analog of trigonal selenium, a avalanche phenomena in strong electric field is investigated. It is shown, that it is perspective for supersensitive optical information carriers (photothe-. rnoplastic carriers, photoconducting targets, LO-photoconductor modulators) and it is problematically for xercgraphical photoreceptors.

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ABSTRACfRecording and reconstruction of pico-and nanosecond pulses were accomplished with spectral holography. The developing of spectral holography in nanosecond time-' domain was provided while using high-spectral-resolution equipment based on FabryPerot etalon with the side entrance/exit. The recognition of shaped nanosecond light pulses was also realized.