Holographic assembly of nanoparticles in polymers for 3D recording and patterning

Optical Properties of Electrically Tunable Two-Dimensional Photonic Lattice Structures Formed in a Holographic Polymer-Dispersed Liquid Crystal Film: Analysis and Experiment

“…It can be seen that LC is rich in the dark illuminated regions as a result of the mutual diffusion of monomer and photo-insensitive species ( i.e. , LCs) [ 4 , 45 , 49 , 50 ]. The refractive index of the HPDLC film is higher (lower) in the LC-rich regions than in the formed polymer-rich regions for s (p) waves since the refractive index of LCs is equal to n e ( n o ) at ϕ LC ≥ ϕ LC | th .…”

“…In this paper we describe theoretical and experimental investigations of the optical properties of electrically controllable 2D honeycomb (graphene)-type PhCs with HPDLCs. We employ the 2 × 2 matrix formulation [ 43 ] and the statistical thermodynamic model [ 44 , 45 ] to calculate light-intensity interference distributions and the corresponding anisotropic refractive index distributions in an HPDLC film under three-beam interference holographic exposure. The effect of multiple reflections recorded in an HPDLC film sandwiched between ITO-electrode loaded glass substrates on the formed interference pattern and the refractive index distribution is taken into account in the theoretical analysis.…”