[11a-C310-1~12] 3.1 Basic optics and frontier of optics

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[11a-C310-2] Very cold neutron interferometer with nanodiamond-polymer composite holographic gratings

〇Yasuo Tomita^1,2, Yuko Iso¹, Roxana Ackermann², Sonja Falmbigl², Elhoucine Hadden³, Alexia Dubois Leprou^3,4, Hanno Filter-Pieler³, Tobias Jenke³, Jeurgen Klepp², Christian Pruner⁵, Martin Fally² (1.Univ. of Electro-Commun., 2.Univ. of Vienna, 3.Institute Laue-Langevin, 4.Univ. of Grenoble, 5.Univ. of Salzburg)

Keywords:

nanocomposite optical materials,holographic grating,neutron interferometer

Photopolymerizable nanoparticle-polymer composites (NPCs) are novel photonic materials providing multi-dimensional photonic crystal structures and holographic gratings in both linear and nonlinear optics regimes. So far, we have also demonstrated efficient diffraction of a cold/very cold neutron beam from a silica NPC holographic grating. Because the neutron coherent scattering length density of diamond is three times larger than that of silica, here we show the diffraction properties of holographic gratings recorded in NPC using nanodiamond and describe the performance of very cold neutron interferometer with these holographic gratings under trial operation.