  Polarized neutrons are a powerful probe to investigate magnetism in condensed
matter on length scales from single atomic distances to micrometers. With the
ongoing advancement of neutron optics, that allow to transport beams with
increased divergence, the demands on neutron polarizes and analyzers have grown
as well. The situation becomes especially challenging for new instruments at
pulsed sources, where a large wavelength band needs to be polarized to make
efficient use of the time structure of the beam.
  Here we present a polarization analysis concept for highly focused neutron
beams that is based on transmission supermirrors that are bend in the shape of
equiangular spirals. The method allows polarizations above 95\% and good
transmission, without negative impact on other beam characteristics. An example
of a compact polarizing device already tested on the AMOR reflectometer is
presented as well as the concept for the next generation implementation of the
technique that will be installed on the Estia instrument being build for the
European Spallation Source.
