Light transmission of polymer-dispersed liquid crystal layer composed of droplets with inhomogeneous surface anchoring

Polarization, transmission, and small-angle scattering of light by a polymer film with elongated droplets of nematic liquid crystal

“…The relaxation method of minimizing the free energy volume density was applied to simulate the LC director configuration (a distribution of local optical axes) inside droplets. The anomalous diffraction approximation was used to determine the elements of the amplitude scattering matrix [14,19,22,[26][27][28]. The calculations were carried out for the monodisperse LC droplets in a polymer film (matrix).…”

“…Using the Foldy-Twersky approximation [14][15][16][17][18][19], we can write the expressions for the coherent (directed) transmission coefficient and polarization degree P c of the forward-c np T transmitted light (the polarizing ability of layer for forward-transmitted light):…”

Model to describe light scattering by polymer film containing droplets with inhomogeneous anchoring of liquid crystal molecules at the polymer–droplet interface: asymmetry effect in the angular distribution of light

“…To find nx, ny, and nz components of the local director n(r), we used the difference scheme of calculations [28].…”

“…4c). Parameter w depends on the external controlling field [28]. By changing the field one can change the intradroplet director field and optical characteristics of the PDLC layer.…”

“…At the moment, there is no rigorous theory of light scattering by dispersed optically anisotropic medium. Because of this, the problem of light propagation is solved by the approximate methods [23][24][25][26][27][28]. In this paper, to describe light scattering in the monolayer films consisting of liquid crystal droplets embedded in polymer matrix the intrerferece approximation and the model of hard discs are used.…”