Citation
Otón Martínez, Eva and Piecek, Wiktor and Morawiak, Przemyslaw and Geday, Morten Andreas and Otón Sánchez, José Manuel
(2013).
Wedged analog tunable beam steering device based on cholesteric liquid crystals.
In: "VIII Reunión Española de Optoelectrónica (OPTOEL 2013)", 10/07/2013 - 12/07/2013, Alcalá de Henares, Spain. pp. 269-273.
Abstract
In this work we propose a novel cholesteric liquid crystal beam steering device based on the Kerr effect. The first version of the device consists of two ITO coated glass plates, with intentionally prepared electrodes, assembled together with a thickness gradient between both sides of the device. One side of the cell has two substrates at direct contact; the other side has separated substrates to form the wedge. The cell was filled with a cholesteric liquid crystal. The liquid crystal material is an innovative mixture called 1892E with extremely low viscosity doped with a ZLI chiral nematogen. The proposed beam steering device based on cholesteric liquid crystals has great potential for many photonic applications. Results describing the performance of the device and the properties of the selected liquid crystals are presented.
