The ease of the molecular orientation of a chromophore has an important effect on the electro-optical (EO) properties of polymeric photorefractive (PR) composites. A derivative of 4-piperidinobenzylidene-malononitrile (PDCST) with an alkoxy group added as a side branch was synthesized to improve the molecular orientation characteristics. Electrophoresis was performed on the polymeric PR composite to which the improved PDCST had been added. The optical properties and response times were examined to evaluate the effects of the substitution of the alkoxy group. PDCST substituted with the alkoxy group showed enhanced EO properties and a PR grating formation rate.
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CorrectionsJongwan Choi, Moon Il Kim, Felix Sunjoo Kim, Nakjoong Kim, Jin-Woo Oh, and Jong-Sik Moon, "Enhancement of the response time in organic photorefractive composites using alkoxy-substituted PDCST as a nonlinear optical chromophore: publisher’s note," Opt. Lett. 46, 327-327 (2021)
18 December 2020: A typographical correction was made to the author affiliations.
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