Publication: Spectral method for fast measurement of twisted nematic liquid crystal cell parameters
Loading...
Advisors
Tutors
Editor
Publication date
Defense date
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
publication.page.ispartofseries
To cite this item, use the following identifier: https://hdl.handle.net/10016/22253
Abstract
We present an experimental approach for the fast measurement of twisted nematic (TN) liquid crystal (LC) cells' parameters. It is based on the spectral measurements of the light transmitted by the system polarizer-reference wave plate-LC cell-analyzer. The cell parameters are obtained by fitting the theoretical model to the experimental data. This method allows determining the rubbing angle, the twist angle and its sense, and the spectral dispersion of the LC cell retardation, simultaneously, with few measurements and without the need of applying voltage or any specific analytical conditions. The method is validated by characterizing two different TN cells with retardations of about 0.91 and 1.85 mum. The birefringence relative error is less than 1.3%.
Note
Funder
Research project
Bibliographic citation
Applied Optics, 53 (2014) 23, pp. 5230-5237
DOI: 10.1364/AO.53.005230