Quadratic Non-Linear Optical Properties of the poly(2,5-bis(but-2-ynyloxy) Benzoate Containing the 2-(ethyl(4-((4-nitrophenyl)buta-1,3-diynyl)phenyl)amino)ethanol) Chromophore
作者： Sandra L. Castañón-Alonso , Omar G. Morales-Saavedra , Marco A. Almaraz-Girón , Sandro Báez-Pimiento , Alejandro Islas-Jácome
关键词: Photonics 、 Diacetylene 、 Polymer 、 Chromophore 、 Ethanol 、 Physical chemistry 、 Materials science 、 Second-harmonic generation 、 Polar 、 Nonlinear optics
摘要: Excellent quadratic non-linear optical (ONL-2) properties of the poly(2,5-bis(but-2-ynyloxy) benzoate, containing a polar diacetylene as chromophore, were found. According with Maker fringes method, oriented polymer films showing an order parameter ∼0.23 can display outstanding and stable Second Harmonic Generation (SHG) effects under off-resonant conditions (SHG-532 nm). Also, macroscopic (NLO)-coefficients evaluated rod-like molecular approximation, obtaining: χzzz(2) χzxx(2) in 280 ± 10 100 pm V-1, respectively. The mechanical chemical properties, addition to large ONL-2 coefficients exhibited by this polymer, make it promising organic material development optoelectronic/photonic devices.
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