Peculiar behaviour of optical polarization gratings in light-sensitive liquid crystalline elastomers

Autor(en)

Matej Prijatelj, Mostafa A. Ellabban, Martin Fally, Valentina Domenici, Martin Copic, Irena Drevensek-Olenik

Abstrakt

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(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Jožef Stefan Institute (IJS), Tanta University, Taibah University, Università degli Studi di Pisa, University of Ljubljana

Journal

Optical Materials Express

Band

6

Seiten

961-970

Anzahl der Seiten

10

ISSN

2159-3930

DOI

https://doi.org/10.1364/OME.6.000961

Publikationsdatum

03-2016

Peer-reviewed

Ja

ÖFOS 2012

103021 Optik, 103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/def8c44b-1014-444b-8150-3186d53442bf