Neutron optics from HMI Berlin

In the last years two-dimensional polarisation analysers and solid state neutron optical devices like polarisers and collimators have been developed at HMI. We discuss results of solid state polarising benders, solid state collimators and a solid state radial bender for the polarisation analysis. In another set up neutrons were polarised by the use of a solid state polarising bender together with a collimator which has the advantage that the polarised neutrons used behind the polariser are not deflected. Results from two-dimensional polarisation analysers for an angular range of 5 degrees in both directions are presented. In all cases polarisations above 95% were realised