Abstract

Polymer films doped with 2-(5,5-dimethyl-3-styryl-cyclohex-2-enylidene)-malononitrile chromophore and various sensitizers have been prepared and characterized. The material exhibits high sensitivity in the red region ($S=0.26 {\mathrm{cm}}^2/\mathrm{J}$ at $\lambda =633 \mathrm{nm}$), a large dynamic range $\left(\mathrm{\Delta }n=-0.05\right)$, and large transient two-beam coupling gain $\left(G=110 {\mathrm{cm}}^{-1}\right)$. Self-diffraction effects, such as energy and phase coupling, and photoinduced scattering are studied.

© 1997 Optical Society of America

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