% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Schulze:480815, author = {Schulze, Kai Sven and Grabiger, Benjamin and Loetzsch, Robert and Marx-Glowna, Berit and Schmitt, Annika T. and Garcia, Alejandro Laso and Hippler, Willi and Huang, Lingen and Karbstein, Felix and Konôpková, Zuzana and Schlenvoigt, Hans-Peter and Schwinkendorf, Jan-Patrick and Strohm, Cornelius and Toncian, Toma and Uschmann, Ingo and Wille, Hans-Christian and Zastrau, Ulf and Röhlsberger, Ralf and Stöhlker, Thomas and Cowan, Thomas and Paulus, Gerhard G.}, title = {{T}owards perfectly linearly polarized x-rays}, journal = {Physical review research}, volume = {4}, number = {1}, issn = {2643-1564}, address = {College Park, MD}, publisher = {APS}, reportid = {PUBDB-2022-03988}, pages = {013220}, year = {2022}, abstract = {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 $8×10^{−11}$ 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.}, cin = {Uni Jena / FS-PS / FS-PET-S}, ddc = {530}, cid = {$I:(DE-H253)Uni_Jena-20181204$ / I:(DE-H253)FS-PS-20131107 / I:(DE-H253)FS-PET-S-20190712}, pnm = {632 - Materials – Quantum, Complex and Functional Materials (POF4-632)}, pid = {G:(DE-HGF)POF4-632}, experiment = {EXP:(DE-H253)XFEL-HED-20150101}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000779840100002}, doi = {10.1103/PhysRevResearch.4.013220}, url = {https://bib-pubdb1.desy.de/record/480815}, }