Soft X-Ray Polarimetry with Multilayer Optics

Polarisation Analysis at BESSY


The polarimeter is also used for a varity of investigations including magneto-optics and multilayer characterizations.
Recent achievement is the development of an achromatic phase shifter on the basis of a W/B4C transmission multilayer for XUV broad-band polarization measurements at the magnetic 2p edges of Fe, Co and Ni. (A single W:B4C transmission multilayer for polarisation analysis of soft x-radiation  up to 1 keV, M.A. MacDonald, F. Schaefers and A. Gaupp, Optics Express, submitted Oct. 2009)

Diagram of undulator polarisation and undulator PLin