Liquid Crystal Blazed Gratings Formed in a Single-Step Through Photo-Induced Localization of Polymer into a Prismatic Structure
A liquid crystal blazed grating having a prismatic polymer microstructure has been developed. The polymer structure is fabricated by photo-induced localization and polymerization of a small concentration of monomer onto one substrate of an electro-optical cell by using ultraviolet light irradiation at 45degrees direction from normal incident. Using this method a periodical one-dimensional pattern with a prismatic shape of polymer can be formed on a one-dimensional pattern-forming state of a cholesteric host. The optical diffraction properties of the grating are evaluated by the application of electric field and light incident angles.
Kim, Sang Hwa and Chien, Liang-Chy (2004). Liquid Crystal Blazed Gratings Formed in a Single-Step Through Photo-Induced Localization of Polymer into a Prismatic Structure. Optics Express 12(7), 1238-1242. doi: 10.1364/OPEX.12.001238 Retrieved from http://digitalcommons.kent.edu/cpippubs/325