![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
A surface stabilized ferroelectric liquid crystal (SSFLC) film, doped with an azo dye, methyl red (MR), is fabricated. A holographic grating is written in this film, using two coherent Ar+ laser beams. Such a grating is formed by the re-orientation of the liquid crystal molecules caused by interaction with the photo-induced adsorption of the doped azo dyes. Experimental results show that the formed grating is permanent but electrically switchable, with a field of ~0.08 V/μm.