Performance of a quadruple reflector circular polarizer in VUV region for angle- and spin-resolved photoemission spectroscopy

被引：4

作者：

Baek, IG ^{[1
]}

Hulbert, SL ^{[1
]}

Vescovo, E ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2002年 / 73卷 / 03期

关键词：

D O I：

10.1063/1.1435822

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A quadruple-reflector circular polarizer has been installed and tested at the U5UA beamline of National Synchrotron Light Source. With an intense and highly linearly polarized vacuum ultraviolet (VUV) undulator light source, the polarizer can produce pure circular polarization in the 20-50 eV photon energy range, enabling angle- and spin-resolved photoemission spectroscopy. The optical conditions for circularly polarized light (CPL) as well as the efficiency of the polarizer have been investigated and compared with calculation. Example valence band magnetic circular dichroism and spin-resolved photoemission spectra taken with CPL demonstrate the advantages of CPL in the VUV energy range. (C) 2002 American Institute of Physics.

引用

页码：1496 / 1498

页数：3

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