Photorefractive effect in a poled polymer containing the tricyanovinylcarbazole group

The photorefractive properties of a poled polymer containing the tricyanovinylcarbazole group with an alkylene spacer are investigated by four‐wave mixing experiments and Mach–Zehnder type electro‐optic measurements. The photorefractive effect is demonstrated in a polymer that shows both the photoconductivity and the electro‐optic effect intrinsically.