Properties of diffraction gratings holographically recorded in poly(ethylene glycol)dimethacrylate-ionic liquid composites
- Author(s)
- Mostafa A. Ellabban, Gaspar Glavan, Peter Flauger, Jürgen Klepp, Martin Fally
- Abstract
We investigated recording and readout of transmission gratings in composites of poly(ethylene glycol) dimethacrylate (PEGDMA) and ionic liquids (IL) in detail. Gratings were recorded using a two-wave mixing technique for different grating periods, exposures and a series of film thicknesses. The recording kinetics as well as the post-exposure behavior of the gratings were studied by diffraction experiments. We found that - depending on the parameters - different grating types (pure phase or mixed) are generated, and at elevated thicknesses strong light-induced scattering develops. Gratings with thicknesses up to 85 micrometers are of the required quality with excellent optical properties, thicker gratings exhibit strong detrimental light-induced scattering. The obtained results are particularly valuable when considering PEGDMA-ionic liquid composites for applications as e.g., holographic storage materials or as neutron optic diffractive elements.
- Organisation(s)
- Physics of Functional Materials
- External organisation(s)
- Tanta University, Jožef Stefan Institute (IJS), Universität Wien
- No. of pages
- 11
- DOI
- https://doi.org/10.1117/12.2264231
- Publication date
- 05-2017
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103021 Optics
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Applied Mathematics, Electrical and Electronic Engineering, Computer Science Applications
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/properties-of-diffraction-gratings-holographically-recorded-in-polyethylene-glycoldimethacrylateionic-liquid-composites(fb488b54-40da-4914-867e-34f5e7c8ffab).html