Soft X-ray transmission polarizer based on ferromagnetic thin films

被引：4

作者：

Mueller, L. ^{[1
,2
]}

Hartmann, G. ^{[3
]}

Schleitzer, S. ^{[1
]}

Berntsen, M. H. ^{[4
]}

Walther, M. ^{[1
]}

Rysov, R. ^{[1
]}

Roseker, W. ^{[1
]}

Scholz, F. ^{[3
]}

Seltmann, J. ^{[3
]}

Glaser, L. ^{[3
]}

Viefhaus, J. ^{[3
]}

Mertens, K. ^{[2
]}

Bagschik, K. ^{[5
,6
]}

Froemter, R. ^{[5
]}

De Fanis, A. ^{[7
]}

Sheychuk, I. ^{[7
]}

Medjanik, K. ^{[8
]}

Ohrwall, G. ^{[8
]}

Oepen, H. P. ^{[5
,6
]}

Martins, M. ^{[2
]}

Meyer, M. ^{[7
]}

Gruebel, G. ^{[1
,6
]}

机构：

[1] Deutsch Elektronen Synchrotron DESY, FS CXS, D-22607 Hamburg, Germany

[2] Univ Hamburg, Dept Phys, D-22761 Hamburg, Germany

[3] Deutsch Elektronen Synchrotron DESY, FS PE, D-22607 Hamburg, Germany

[4] KTH Royal Inst Technol, SCI Mat Phys, Electrum 229, S-16440 Kista, Sweden

[5] Univ Hamburg, Ctr Hybrid Nanostruct, D-22761 Hamburg, Germany

[6] Hamburg Ctr Ultrafast Imaging CUI, D-22761 Hamburg, Germany

[7] European XFEL, D-22869 Schenefeld, Germany

[8] Lund Univ, MAX Lab 4, S-22100 Lund, Sweden

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 03期

关键词：

MAGNETIC-ANISOTROPY;

D O I：

10.1063/1.5018396

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A transmission polarizer for producing elliptically polarized soft X-ray radiation from linearly polarized light is presented. The setup is intended for use at synchrotron and free-electron laser beamlines that do not directly offer circularly polarized light for, e.g., X-ray magnetic circular dichroism (XMCD) measurements or holographic imaging. Here, we investigate the degree of ellipticity upon transmission of linearly polarized radiation through a cobalt thin film. The experiment was performed at a photon energy resonant to the Co L-3-edge, i.e., 778 eV, and the polarization of the transmitted radiation was determined using a polarization analyzer that measures the directional dependence of photo electrons emitted from a gas target. Elliptically polarized radiation can be created at any absorption edge showing the XMCD effect by using the respective magnetic element. Published by AIP Publishing.

引用

页数：3

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