Unidirectional ray polaritons in twisted asymmetric stacks

Open Access funding enabled and organized by Projekt DEAL.J.A.-C., A.I.F.T.-M., E.T.-G. and G.A.-P. acknowledge support from the Severo Ochoa program of the government of the Principality of Asturias (nos. PA-22-PF-BP21-100, PA-21-PF-BP20-117, PA-23-PF-BP22-046 and PA-20-PF-BP19-053, respectively). J.M.-S. acknowledges financial support from the Ramon y Cajal Program of the Government of Spain and FSE (RYC2018-026196-I), and the project PCI2022-132953 funded by MCIN/AEI/10.13039/501100011033 and the EU "NextGenerationEU/PRTR". P.A.-G. acknowledges support from the European Research Council under Consolidator grant no. 101044461, TWISTOPTICS and the Spanish Ministry of Science and Innovation (State Plan for Scientific and Technical Research and Innovation grant number PID2022-141304NB-I00). A.Y.N. acknowledges the Spanish Ministry of Science and Innovation (grants PID2020-115221GB-C42, PID2023-147676NB-I00) and the Basque Department of Education (grant PIBA-2023-1-0007). L.H. and J.M.D.T. acknowledge financial support by Gobierno de Aragon via grant E13_23R with European Social Funds (Construyendo Europa desde Aragon). L.H. and J.M.D.T. thank the CSIC Interdisciplinary Thematic Platform (PTI) on Quantum Technologies (PTI-QTEP). Authors acknowledge the use of instrumentation as well as the technical advice provided by the National Facility ELECMI ICTS, node << Laboratorio de Microscopias Avanzadas (LMA)>> at << Universidad de Zaragoza >>. Parts of this research were carried out at the ELBE Center for High-Power Radiation Sources at the Helmholtz-Zentrum Dresden-Rossendorf e. V., a member of the Helmholtz Association. M.O., L.M.E., and S.C.K. acknowledge the financial support by the Bundesministerium fur Bildung und Forschung (BMBF, Federal Ministry of Education and Research, Germany, Project Grant Nos. 05K19ODB and 05K22ODA) and by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy through Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat (EXC 2147, project-id 390858490). T.G.F. was supported through the National Science Foundation through grant 2236807. S.D. was supported by the Office of Naval Research MURI grant N0001-23-1-2567. K.D.-G. acknowledges support by the Army Research Office under grant W911NF-21-1-0119. R.K. acknowledges support by the National Aeronautics and Space Administration (NASA) grant NASA 80NSSC22K1201. A.S.S. acknowledges support by the Office of Naval Research Petersen grant N00014-23-1-2676 while J.D.C. was supported by the Office of Naval Research grant N00014-22-1-2035 and by the Department of Energy-Basic Energy Sciences under Grant DE-FG02-09ER4655. G.C., N.S.M., S.W., M.W., and A.P. were supported by the Max Planck Society.