RT Journal Article
T1 Spectral method for fast measurement of twisted nematic liquid crystal cell parameters
A1 Pinzón Castillo, Plinio Jesús
A1 Pérez Garcilópez, Antonia Isabel
A1 Sánchez-Pena, José Manuel
A1 Vázquez García, María Carmen
AB 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%.
PB Optical Society of America
SN 1559-128X
YR 2014
FD 2014-08-10
LK https://hdl.handle.net/10016/22253
UL https://hdl.handle.net/10016/22253
LA eng
NO This work was supported in part by the Ministerio de Economíay Competitividad of Spain under Grant TEC2012–37983–C03–02
DS e-Archivo
RD 28 may. 2024