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Updated: Jan 19, 2026

Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Light- and Neutron-Optical Properties of Holographic Transmission Gratings from Polymer-Ionic Liquid Composites with
Peter Flauger1, Mostafa A Ellabban2,3, Gašper Glavan4
1Faculty of Physics, Physics of Functional Materials, University of Vienna, Boltzmanngasse 5, A-1090 Wien, Austria. peter.flauger@univie.ac.at.
Abstract:
We investigate the applicability of polymer-ionic liquid composites as optical elements for light, as well as for slow neutrons. The gratings are recorded using two-beam mixing and are characterized experimentally based on their diffraction properties. We produced a set of samples differing in their thickness, ranging from 10 m - 100 m . We demonstrate that it is possible to prepare transmission gratings with a lattice constant of Λ = 480 n m , resulting in thick gratings for light, as well as neutrons. The presented samples show low optical losses in the Vis-UV spectrum and exhibit refractive index modulations of about 10 - 3 at λ = 543 n m . However, further improvements have to be made to obtain efficient neutron optical components.
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