Journal Article

PUBDB-2020-05021

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Disentangling x-ray dichroism and birefringence via high-purity polarimetry

Schmitt, A. T.Extern* ; Joly, Y.Extern* ; Schulze, K. S.Extern*XFEL.EU* ; Marx-Glowna, B.XFEL.EU* ; Uschmann, I.Extern* ; Grabiger, B.Extern* ; Bernhardt, H.Extern* ; Loetzsch, R.Extern*XFEL.EU* ; Juhin, A.Extern* ; Debray, J. ; Wille, H.-C.XFEL.EU*DESY* ; Yavaş, H.Extern* ; Paulus, G. G.Extern* ; Röhlsberger, R. (Corresponding author)Extern*XFEL.EU*DESY*

2021
OSA Washington, DC

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Please use a persistent id in citations: doi:10.1364/OPTICA.410357  doi:10.3204/PUBDB-2020-05021

Report No.: arXiv:2003.00849

Abstract: High-brilliance synchrotron radiation sources have opened new avenues for x-ray polarization analysis that go far beyond conventional polarimetry in the optical domain. With linear x-ray polarizers in a crossed setting, polarization extinction ratios down to 10$^{−10}$ can be achieved. This renders the method sensitive to probe the tiniest optical anisotropies that would occur, for example, in strong-field quantum electrodynamics due to vacuum birefringence and dichroism. Here we show that high-purity polarimetry can be employed to reveal electronic anisotropies in condensed matter systems with utmost sensitivity and spectral resolution. Taking CuO and La$_2$CuO$_4$ as benchmark systems, we present a full characterization of the polarization changes across the Cu K-absorption edge and their separation into dichroic and birefringent contributions. At diffraction-limited synchrotron radiation sources and x-ray lasers, where polarization extinction ratios of 10$^{−12}$ can be achieved, our method has the potential to assess birefringence and dichroism of the quantum vacuum in extreme electromagnetic fields.

Note: 6 pages, 4 figures, 8 pages supplemental material (4 figures)

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. FS-Photon Science (FS-PS)
3. Uni Jena (Uni Jena)
4. Experimentebetreuung PETRA III (FS-PET-S)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. DFG project 416700351 - Hochpräzise Röntgenpolarimeter aus Diamant für den Nachweis der Vakuumdoppelbrechung (416700351) (416700351)

Experiment(s):

1. PETRA Beamline P01 (PETRA III)

Appears in the scientific report 2021

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Database coverage:
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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Schmitt, A. (Corresponding author)Extern* ; Joly, Y.Extern* ; Schulze, K. S. ; Marx-Glowna, B.Extern* ; Uschmann, I.Extern* ; Grabiger, B.Extern* ; Bernhardt, H.Extern* ; Loetzsch, R.Extern* ; Juhin, A.Extern* ; Debray, J. ; Wille, H.-C.DESY* ; Yavas, H.Extern*DESY* ; Paulus, G.Extern* ; Röhlsberger, R. (Corresponding author)DESY*
Disentangling X-ray dichroism and birefringence via high-purity polarimetry
Optica 1-10 (2020) [10.3204/PUBDB-2020-04918]2020     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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