Complete polarization analysis of high energy soft x-rays by combining a multilayer phase retarder with crystal analyzer

We demonstrate a complete polarization analysis of soft x-rays with an energy of 1.1 keV using a free-standing W/B4C multilayer phase retarders and a beryl crystal analyzer. The W/B4C multilayer exhibits five times increase in transmission over that previously reported. The beryl crystal proves to be a suitable analyzer for the polarization analysis with a 10% s-component of reflectivity resulting in an extinction ratio close to 0.002 at 1.1 keV. The combination of multilayer phase retarders and crystal analyzers should open up the field of the soft x-ray polarization analysis in the energy range between 1 keV and 2 keV.

[1]  Performance of a reflection-type polarizer by use of muscovite mica crystal in the soft x-ray region of 1 keV , 2005 .

[2]  S. Dhesi,et al.  The Nanoscience Beamline (I06) at Diamond Light Source , 2010 .

[3]  Hiroaki Kimura,et al.  Transmission type Sc/Cr multilayer as a quarter-wave plate for near 400 eV , 2005 .

[4]  H. Grimmer,et al.  Polarization analysis in soft X-ray diffraction to study magnetic and orbital ordering. , 2008, Journal of synchrotron radiation.

[5]  G. Srajer,et al.  Bragg transmission phase plates for the production of circularly polarized x rays , 1995 .

[6]  N. Brookes,et al.  Spin- and orbital-moment compensation in the zero-moment ferromagnet Sm0.974Gd0.026Al2. , 2010 .

[7]  A T Boothroyd,et al.  Photoinduced melting of antiferromagnetic order in La(0.5)Sr(1.5)MnO4 measured using ultrafast resonant soft x-ray diffraction. , 2011, Physical review letters.

[8]  A. K. Powell,et al.  Complete polarization analysis of extreme ultraviolet radiation with a broadband phase retarder and analyzer , 2007 .

[9]  Kazuo Sano,et al.  Polarizance of a synthetic mica crystal polarizer and the degree of linear polarization of an undulator beamline at 880 eV evaluated by the rotating-analyzer method , 2005 .

[10]  S. Eeckhout,et al.  Oxidation effects in beryl induced by synchrotron radiation , 2005 .

[11]  A single W/B4C transmission multilayer for polarization analysis of soft x-rays up to 1keV. , 2009, Optics express.

[12]  M. Koike,et al.  Theoretical Investigation of Transmission‐Type Phase Shifter Made with Muscovite Mica Crystal for 1‐keV Region , 2007 .

[13]  H. Dürr,et al.  Isolating the interface magnetocrystalline anisotropy contributions in magnetic multilayers. , 2003, Physical review letters.

[14]  F. Yuan,et al.  High-precision soft x-ray polarimeter at Diamond Light Source. , 2011, The Review of scientific instruments.

[15]  F. Schäfers,et al.  Soft-x-ray polarimeter with multilayer optics: complete analysis of the polarization state of light. , 1999, Applied optics.

[16]  C. Grazioli,et al.  Localized magnetic states of Fe, Co, and Ni impurities on alkali metal films. , 2002, Physical review letters.