TY  - JOUR
AU  - Schulze, Kai Sven
AU  - Grabiger, Benjamin
AU  - Loetzsch, Robert
AU  - Marx-Glowna, Berit
AU  - Schmitt, Annika T.
AU  - Garcia, Alejandro Laso
AU  - Hippler, Willi
AU  - Huang, Lingen
AU  - Karbstein, Felix
AU  - Konôpková, Zuzana
AU  - Schlenvoigt, Hans-Peter
AU  - Schwinkendorf, Jan-Patrick
AU  - Strohm, Cornelius
AU  - Toncian, Toma
AU  - Uschmann, Ingo
AU  - Wille, Hans-Christian
AU  - Zastrau, Ulf
AU  - Röhlsberger, Ralf
AU  - Stöhlker, Thomas
AU  - Cowan, Thomas
AU  - Paulus, Gerhard G.
TI  - Towards perfectly linearly polarized x-rays
JO  - Physical review research
VL  - 4
IS  - 1
SN  - 2643-1564
CY  - College Park, MD
PB  - APS
M1  - PUBDB-2022-03988
SP  - 013220
PY  - 2022
AB  - In recent years, high-precision x-ray polarimeters have become a key method for the investigation of fundamental physical questions from solid-state physics to quantum optics. Here, we report on the verification of a polarization purity of better than 8×10<sup>−11</sup> at an x-ray free-electron laser, which implies a suppression of the incoming photons to the noise level in the crossed polarizer setting. This purity provides exceptional sensitivity to tiny polarization changes and offers intriguing perspectives for fundamental tests of quantum electrodynamics.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000779840100002
DO  - DOI:10.1103/PhysRevResearch.4.013220
UR  - https://bib-pubdb1.desy.de/record/480815
ER  -