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Colossal light-induced refractive-index modulation for neutrons in holographic polymer-dispersed liquid crystals

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...

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Bibliographic Details
Published in:Physical review letters 2006-10, Vol.97 (16), p.167803-167803, Article 167803
Main Authors: Fally, Martin, Drevensek-Olenik, Irena, Ellabban, Mostafa A, Pranzas, Klaus P, Vollbrandt, Jürgen
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.97.167803