POLARIMETER

Polarimetry

The POLARIMETER is a versatile UHV-polarimeter for the EUV XUV spectral range which incorporates two optical elements: a phase retarder and a reflection analyzer. Both optics are azimuthally rotatable around the incident synchrotron radiation beam and the incidence angle is freely selectable. This allows for a variety of reflectometry, polarimetry and ellipsometry applications on magnetic or non-magnetic samples and multilayer optical elements.

Selected Applications:
  • Development of ML-optics for Polarisation Steering and Control
  • Full control of Stokes vector (S1, S2, S3) in XUV-range (<1000 eV)
  • Complete at-wavelength characterisation of multilayer optics
  • Measurement of complex reflection or transmission coefficients (Amplitudes and Phases)
  • Polarisation Spectroscopy - Magneto-optics - XMCD, XMLD, T,L-MOKE, Faraday-, Kerr-effect
Schematic representation of the POLARIMETER at BESSY II

Schematic representation of the POLARIMETER at BESSY II


Methods

Reflectivity, NEXAFS, XRF, XMCD, Ellipsometry, Polarimetry, Reflectometry

Remote access

not possible

Beamline data
Energy range 85 - 1600 eV
Energy resolution Energy and slit dependent, resolving power 4300 at 400 eV and slit 20 µm
Flux see the flux curve below
Polarisation horizontal
Focus size (hor. x vert.) slit dependent, see the "focal size" figure below
Phone +49 30 8062 14835
More details U49-2_PGM-1
Station data
Temperature range room temperature
Pressure range For details contact the station manager.
Detector GaAs-photodiodes (4 mm x 4 mm) w/o pinholes and slits
Manipulators for details see technical description in pdf-file
Sample holder compatibility For details contact the station manager
Additional equipment


"A versatile UHV-polarimeter for the EUV XUV spectral range is described which incorporates two optical elements: a phase retarder and a reflection analyzer. Both optics are azimuthally rotatable around the incident synchrotron radiation beam and the incidence angle is freely selectable. This allows for a variety of reflectometry, polarimetry and ellipsometry applications on magnetic or non-magnetic samples and multilayer optical elements." http://dx.doi.org/10.17815/jlsrf-2-90

For more details, please contact the instrument scientist(s).