“…For example, surface-modified QDs, nanodiamonds and magnetic nanoparticles can be used for photopolymerizable NPCs. Thin NPC gratings dispersed with nanodiamonds would result in high slow-neutron diffraction efficiency since the interaction of nanodiamond with slow neutron is approximately two times larger than that of SiO2 nanoparticles and thus provides a large value of nsat [20]. Also, NPC gratings dispersed with magnetic nanoparticles such as Fe 3 O 4 would play a role in slow-neutron spin interferometer for slow-neutron beam's spin control and separation [20].…”