Computer simulation of Bragg grating formation in holographic polymer-dispersed liquid crystals based on the density functional theory

Yoshiaki Fukuda; Yasuo Tomita

doi:10.1117/12.922309

8 May 2012 Computer simulation of Bragg grating formation in holographic polymer-dispersed liquid crystals based on the density functional theory

Yoshiaki Fukuda, Yasuo Tomita

Author Affiliations +

Proceedings Volume 8429, Optical Modelling and Design II; 842919 (2012) https://doi.org/10.1117/12.922309
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We report on a statistical thermodynamic simulation of holographic photopolymerization in a holographic polymer-dispersed liquid crystal under holographic exposure. We employ the dynamic density functional theory to study the spatio-temporal evolution of monomer, polymer and liquid crystal distributions as continuous density order parameters in numerical simulations. Density-dependent mutual diffusion of monomer, polymer and liquid crystals are taken into account under the constraints of the mass conservation and the incompressibility conditions by using the Lagrange multiplier method. The autocatalytic model is employed to describe the photopolymerization kinetics. The simulation results are compared with measured results such as the average size of liquid crystal droplets and a grating-spacing dependence of the formed refractive index modulation.

Citation Download Citation

Yoshiaki Fukuda and Yasuo Tomita "Computer simulation of Bragg grating formation in holographic polymer-dispersed liquid crystals based on the density functional theory", Proc. SPIE 8429, Optical Modelling and Design II, 842919 (8 May 2012); https://doi.org/10.1117/12.922309

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