We report a capacitance tracking method for achieving arbitrary polarization rotation from nematic liquid crystals. By locking to the unique capacitance associated with the molecular orientation, any polarization rotation can be achieved with improved accuracy over a wide temperature range. A modified relaxation oscillator circuit that can simultaneously determine the capacitance and drive the rotator is presented.
@article{arxiv.1707.04325,
title = {Tracking capacitance of liquid crystal devices to improve polarization rotation accuracy},
author = {Rakhitha Chandrasekara and Kadir Durak and Alexander Ling},
journal= {arXiv preprint arXiv:1707.04325},
year = {2017}
}