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-refractive materials probed up to now. This makes H-PDLCs a promising candidate for fabricating neutron-optical devices.
Fally
Martin
M
Nonlinear Physics Group, Faculty of Physics, Universität Wien, Boltzmanngasse 5, Wien, Austria. Martin.Fally@univie.ac.at
Drevensek-Olenik
Irena
I
Ellabban
Mostafa A
MA
Pranzas
Klaus P
KP
Vollbrandt
Jürgen
J