Twisted nematic liquid crystals (TNLCs) are an interesting alternative to the linear liquid
crystal variable retarders commonly used in polarimetric systems. The first and last …

Theoretical studies on Stokes polarimeter made of one twisted nematic crystal (TNLC) and
one linear polarizer were carried out. Approaching the description of the TNLC theoretically …

We present a procedure to obtain the physical parameters responsible of twisted nematic
liquid crystal (LC) cells optical modulation. The novelty of our approach is based on the use …

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 …

Polarization properties of a twisted nematic liquid crystal cell are fully characterized by an
equivalent optical system that consists of a retarder wave plate and a rotator. In this paper …

This work presents a complete polarimetric study of a twisted-nematic (TN) liquid–crystal
(LC) cell. We review the physical models that describe the cell and analyze the different …

We describe a method to determine the anisotropic parameters of liquid crystal televisions
(LCTVs) formed by twisted nematic liquid crystals, as a function of the wavelength over a …

A dynamic polarization scanning ellipsometry technique based on Stokes polarimetry is
proposed for dynamically characterizing a voltage-driven twisted nematic liquid crystal …

Optical transmittance of a 90-twisted nematic liquid crystal cell inserted between crossed or
parallel polarizers is neither sensitive to the molecular twist sense nor to the exchange …

We analyze the optical effects associated with an adiabatic rotation of a plane of polarization
in a twisted nematic liquid crystal. The experimental verification was performed with a cell …