Diffraction Gratings for Neutrons from Polymers and Holographic Polymer-Dispersed Liquid Crystals

Details Diffraction Gratings for Neutrons from Polymers and Holographic Polymer-Dispersed Liquid Crystals Diffraction Gratings for Neutrons from Polymers and Holographic Polymer-Dispersed Liquid Crystals

2008-07-22

arxiv.org/abs/0807.3448v2

J. Opt. A: Pure Appl. Opt. 11 (2009) 024019

Physics

Optics

16 pages, 7 figures, title changed, fig 1 skipped, fig 3 changed

Scientific paper

10.1088/1464-4258/11/2/024019

We discuss the applicability of holographically recorded gratings in photopolymers and holographic polymer-dispersed liquid crystals as neutron optical elements. An experimental investigation of their properties for light and neutrons with different grating spacings and grating thicknesses is performed. The angular dependencies of the diffraction efficiencies for those gratings are interpreted in terms of a rigourous coupled wave analysis. Starting from the obtained results we work out the lines for the production of an optimised neutron optical diffraction grating, i.e., high diffraction efficiency in the Bragg diffraction regime with moderate angular selectivity.

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