{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T20:15:17Z","timestamp":1791490517270,"version":"4.3.4"},"reference-count":39,"publisher":"Wiley","issue":"51","license":[{"start":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T00:00:00Z","timestamp":1765238400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T00:00:00Z","timestamp":1765238400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Nanoscale control of energy transport is a central challenge in modern photonics. Utilization of exciton\u2013polaritons\u2014hybrid light\u2010matter quasiparticles\u2014is one viable approach, but it typically demands complex device engineering to enable directional transport. Here, it is demonstrated that the van der Waals magnet CrSBr offers an inherent avenue for steering polariton transport leveraging a unique combination of intrinsic optical anisotropy, high refractive index, and excitons dressed by photons. This combination enables low\u2010loss guided modes that propagate over 50\u00a0\u00b5m along the crystal\n                    <jats:italic>a<\/jats:italic>\n                    \u2010axis, while simultaneously inducing strong 1D confinement by forbidding transport along the orthogonal\n                    <jats:italic>b<\/jats:italic>\n                    \u2010axis. By embedding CrSBr flakes in a microcavity, the confinement is further enhanced, as evidenced by energy modes that are discretized along the\n                    <jats:italic>b<\/jats:italic>\n                    axis but continuous along the\n                    <jats:italic>a<\/jats:italic>\n                    axis. Moreover, the magneto\u2010exciton coupling characteristic of CrSBr allows unprecedented control over both unidirectional propagation and confinement. The results establish CrSBr as a versatile polaritonic platform for integrated optoelectronic device applications, including energy\u2010efficient optical modulators and\u00a0switches.\n                  <\/jats:p>","DOI":"10.1002\/adma.202512557","type":"journal-article","created":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T06:30:32Z","timestamp":1765348232000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Directional Flow of Confined Polaritons in CrSBr"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4719-161X","authenticated-orcid":false,"given":"Pratap Chandra","family":"Adak","sequence":"first","affiliation":[{"name":"Department of Physics City College of New York New York NY 10031 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