Optical Third Harmonic Generation of Poly(2-Alkoxy-1,4-Phenylenevinylene)'S
- 1 June 1994
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 247 (1) , 121-128
- https://doi.org/10.1080/10587259408039197
Abstract
A series of poly (2-alkoxy-1,4-phenylenevinylene)'s was synthesized by water-soluble precursor method. In this paper, three poly(1,4-phenylenevinylene) (PPV) derivatives were included, poly (2-methoxy-1,4-phenylenevinylene), poly(2-butoxy-1,4-phenylenevinylene) and poly (2-dodecyloxy-1,4-phenylenevinylene). These polymers were characterized using UV-visible, FT-IR spectroscopy and DSC, TGA thermal analyzer. The third order nonlinear optical susceptibilities of the polymers were determined using third harmonic generation (THG) method at 1907 nm, fundamental wavelength. Measured x (3) values are 10−11–10−12 esu order and as the side chain length is increased, the x (3) value is decreased because of the side chain effect on conjugation and of volume fraction.Keywords
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