Colossal light-induced refractive-index modulation for neutrons in holographic polymer-dispersed liquid crystals |
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| Authors: | Fally Martin Drevensek-Olenik Irena Ellabban Mostafa A Pranzas Klaus P Vollbrandt Jürgen |
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| Institution: | Nonlinear Physics Group, Faculty of Physics, Universit?t Wien, Boltzmanngasse 5, Wien, Austria. Martin.Fally@univie.ac.at |
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| Abstract: | We report strong diffraction of cold neutrons from an only 30 micro m thick holographic polymer-dispersed liquid crystal (H-PDLC) transmission grating. The light-induced refractive-index modulation for neutrons is about 10(-6), i.e., nearly 2 orders of magnitude larger than in the best photo-neutron-refractive materials probed up to now. This makes H-PDLCs a promising candidate for fabricating neutron-optical devices. |
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