The behavior of liquid crystal (LC) molecules and dye molecules in a dye-doped liquid crystal (DDLC) under a voltage application condition was quantitatively investigated. To observe the reorientation of these molecules, the real and imaginary parts of the complex refractive index were simultaneously and individually measured using an optical interferometer. The obtained results indicate that the alignment of dye molecules doped in DDLC occurs following the electrically responding LC molecules, near the Freedericksz transition region of LC.
The behavior of a cholesteric liquid crystal (CLC) cell under the voltage application condition was quantitatively investigated. To observe the realignment of the CLC including helical pitch and tilt angle changes, the phase delay change and amplitude reduction of transmitted light were measured simultaneously and individually using a Mach–Zehnder interferometer. Compared to a numerical simulation based on a 4 × 4 method, changes in the helical pitch and tilt angle of the CLC cell were quantitatively determined.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.