[19a-E204-1~11] 3.1 Basic optics and frontier of optics

[19a-E204-9] Observation of slow-neutron beam diffraction from a superparamagnetic Fe₃O₄ nanoparticle-polymer composite grating

〇Yasuo Tomita¹, Yuko Iso¹, Akihisa Kageyama¹, Juergen Klepp², Christian Pruner³, Martin Fally² (1.Univ. Electro-Commun., 2.Univ. of Vienna, 3.Univ. of Saltzburg)

Keywords:nanocomposite materials, neutron optics, holographic grating

We demonstrate volume holographic recording in a photopolymerizable superparamagnetic Fe₃O₄ nanoparticle-polymer composite film at a recording wavelength of 532 nm. We also show the observation of diffraction of a slow-neutron beam at a wavelength of 4.5 nm from the recorded volume holographic grating for spin splitting and branching of a spin-polarized slow-neutron beam.