Alternating polyanion/polycation second-order nonlinear optical films by aqueous solution deposition

M. Joseph Roberts; John D. Stenger-Smith; Peter Zarras; Geoffrey A. Lindsay; Richard A. Hollins; Andrew P. Chafin; Rena Y. Yee; Kenneth J. Wynne

doi:10.1117/12.305412

17 April 1998 Alternating polyanion/polycation second-order nonlinear optical films by aqueous solution deposition

M. Joseph Roberts, John D. Stenger-Smith, Peter Zarras, Geoffrey A. Lindsay, Richard A. Hollins, Andrew P. Chafin, Rena Y. Yee, Kenneth J. Wynne

Author Affiliations +

Proceedings Volume 3281, Polymer Photonic Devices; (1998) https://doi.org/10.1117/12.305412
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Alternating polyelectrolyte deposition (APD) in aqueous solutions may be used to process nonlinear optical polymers (NLOPs) into noncentrosymmetric ordered films at ambient temperature. Second-order NLOP films were prepared by alternately dipping a substrate into aqueous solutions of a polycation and a polyanion. Polyepichlorohydrin substituted with stilbazolium side-chain chromophore was used as the cationic NLOP. The inactive polyanion was polystyrene sulfonate. Uniform layer to layer deposition is observed as evidenced by a linear increase of UV-Visible absorbance and quadratic increase of second harmonic generated light intensity as a function of film thickness. Films have been uniformly deposited up to 24 bilayers. Films have been further characterized by contact angle measurements, interferometry, and polarized light microscopy. Work is in progress to deposit thicker films of the same quality and to quantify NLO figures of merit.

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M. Joseph Roberts, John D. Stenger-Smith, Peter Zarras, Geoffrey A. Lindsay, Richard A. Hollins, Andrew P. Chafin, Rena Y. Yee, and Kenneth J. Wynne "Alternating polyanion/polycation second-order nonlinear optical films by aqueous solution deposition", Proc. SPIE 3281, Polymer Photonic Devices, (17 April 1998); https://doi.org/10.1117/12.305412

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