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LC SLM with fullerene-dye-polyimide photosensitive layer

Optically-addressed liquid crystal spatial light modulator has been investigated, in which a polyimide photosensitive layer has been simultaneously sensitized with dye and fullerenes. Dynamic modulator characteristics have been measured by the second harmonic (532 nm) of a pulsed Nd-laser under the Raman- Nath diffraction conditions. The ways of enhancing sensitivity (from 10-6 to 2 (DOT) 10-7 J(DOT)cm-2) have been found. The fulfillment of the Forster resonant conditions allowed the Forster model to be applied for the results interpretation. The comparative data have been presented for modulators with both impurity free and dye- and fullerene-doped polyimides.