Peculiar behaviour of optical polarization gratings in light-sensitive liquid crystalline elastomers
- Author(s)
- Matej Prijatelj, Mostafa A. Ellabban, Martin Fally, Valentina Domenici, Martin Copic, Irena Drevensek-Olenik
- Abstract
The angular dependence of the diffraction efficiency of volume-type holographic gratings recorded in a single-domain light-sensitive liquid crystalline elastomer was investigated. Usually this dependence is expected to be very similar for intensity gratings and for polarization gratings. However, our measurements resolved a profound difference between the two types of the gratings: a typical Bragg peak of the diffraction efficiency is observed only for intensity gratings, while polarization gratings exhibit a profound dip at the Bragg angle. The appearance of this dip is explained by strongly anisotropic optical absorption of the actinic light during the recording process.
- Organisation(s)
- Physics of Functional Materials
- External organisation(s)
- Jožef Stefan Institute (IJS), Tanta University, Taibah University, University of Pisa, University of Ljubljana
- Journal
- Optical Materials Express
- Volume
- 6
- Pages
- 961-970
- No. of pages
- 10
- ISSN
- 2159-3930
- DOI
- https://doi.org/10.1364/OME.6.000961
- Publication date
- 03-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103021 Optics, 103018 Materials physics
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/peculiar-behaviour-of-optical-polarization-gratings-in-lightsensitive-liquid-crystalline-elastomers(def8c44b-1014-444b-8150-3186d53442bf).html