We consider the dynamics of a variable optical prism based on Pancharatnam phase. The device basics, using liquid crystals (LCs) as the electro-optical material, have been previously proposed. In this paper, we study the dynamics of discrete changes in the phase profile, and also continuous changes in the phase profile through acquired data and numerical modeling. We show that a design based on LCs whose dielectric anisotropy can change sign (as a function of frequency) allows continuous tuning with reasonable response times.
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/AO.49.000976. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Shi, Lei; McManamon, Paul F.; Bryant, Douglas R.; Zhang, Ke; Bos, Philip J. (2010). Dynamics of a Liquid-Crystal Variable Optical Prism Based on Pancharatnam Phase. Applied Optics 49(6) 976-985. doi: 10.1364/AO.49.000976. Retrieved from https://oaks.kent.edu/cpippubs/316