Electrically induced and controlled gratings in large pitch cholesteric liquid crystals were investigated. Specially selected surface anchoring conditions together with well defined properties of cholesterics allow the formation of a stable periodic structure in the presence of a suitable external electric field. Polarization properties of first diffraction orders have been investigated as a function of the angle between the laser linear polarization and the grating direction. We propose to use two 1D gratings to create a 2D electrically controllable diffraction pattern, suitable for application in 3D optical devices.
Electrically Controlled 1D and 2D Cholesteric Liquid Crystal Gratings / Hamdi, R; Petriashvili, G; DE SANTO, Maria Penelope; Lombardo, G; Barberi, Riccardo Cristoforo. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1542-1406. - 553(2012), pp. 97-102.
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Titolo: | Electrically Controlled 1D and 2D Cholesteric Liquid Crystal Gratings |
Autori: | |
Data di pubblicazione: | 2012 |
Rivista: | |
Citazione: | Electrically Controlled 1D and 2D Cholesteric Liquid Crystal Gratings / Hamdi, R; Petriashvili, G; DE SANTO, Maria Penelope; Lombardo, G; Barberi, Riccardo Cristoforo. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1542-1406. - 553(2012), pp. 97-102. |
Handle: | http://hdl.handle.net/20.500.11770/131891 |
Appare nelle tipologie: | 1.1 Articolo in rivista |