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A silicon 〈111〉 phase retarder for producing circularly polarized x-rays in the 2.1-3 keV energy range

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Bouchenoire, Laurence, Morris, R. J. H. (Richard J. H.) and Hase, Thomas P. A. (2012) A silicon 〈111〉 phase retarder for producing circularly polarized x-rays in the 2.1-3 keV energy range. Applied Physics Letters, Vol.101 (No.6). 064107. doi:10.1063/1.4740080

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Official URL: http://dx.doi.org/10.1063/1.4740080

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Abstract

Circularly polarized synchrotron light is routinely used to study different material properties but is difficult to generate reproducibly below 3.1 keV. We present data from a 5 μm Si 〈111〉 phase retarder (PR) designed to operate in the 2.1 to 3 keV energy range. Measurements were performed at the Pd L3 edge to enable direct comparison with a conventional diamond PR. The degree of circular polarization was ascertained indirectly by recording the resonant specular reflectivity from a [Fe(2 ML)/Pd(15 ML)]×20 multilayer. Our findings show that such a device can be used to extend the usable energy capability of PR technology down to 2.1 keV.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Applied Physics Letters
Publisher: American Institute of Physics
ISSN: 0003-6951
Official Date: 6 August 2012
Dates:
DateEvent
6 August 2012Published
Volume: Vol.101
Number: No.6
Number of Pages: 4
Page Range: 064107
DOI: 10.1063/1.4740080
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: UK Engineering and Physical Sciences Research Council

Data sourced from Thomson Reuters' Web of Knowledge

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