2026-10-13T11:04:33Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34032107 2026-09-30T12:05:27Z category_915 category_13 category_15 category_16 category_24 category_873 category_39 category_502 category_734 category_64 category_69 category_122 portal_63 item_type_6 month_year_09_2026

Long Range Coherent Valley Pseudospin Transport via Bloch Surface Wave Polaritons in Monolayer Transition Metal Dichalcogenides Zhengyang Lyu (9962772) Haonan Zhao (4162849) Bin Liu (5899) Claire E. Arneson (25143746) Lingxiao Zhou (11753641) Chenxi Liu (286325) Yuhan Zhang (2792089) Stephen R. Forrest (1587418) Parag B. Deotare (2342416) Physical Sciences not elsewhere classified Genetics Neuroscience Physiology Evolutionary Biology Chemical Sciences not elsewhere classified Ecology Astronomical and Space Sciences not elsewhere classified Biological Sciences not elsewhere classified Cancer Inorganic Chemistry Mental Health 2 </ sub work demonstrates valleytronics relies valley pseudospins present long polarization domains magnetically controlled long distances exfoliated ws excitonic component cryogenic temperatures bswps ). bswp transport The feasibility of low-dimensional transition metal dichalcogenides (TMDs) as a platform for valleytronics relies on the ability to control the dynamics of the valley pseudospins. Here, we present long-range coherent valley pseudospin transport assisted by Bloch surface wave exciton-polaritons (BSWPs). We resolve the BSWP transport in exfoliated WS₂ over distances exceeding 10 μm in both spatial and polarization spaces via momentum-selected circular dichroism spectroscopy at cryogenic temperatures. We show that the trajectories on the Poincaré sphere reflect hybrid light–matter polarization dynamics. Furthermore, we show that the BSWP transport can be optically or magnetically controlled through the photonic or the excitonic component. Our work demonstrates the ability to coherently transport valley pseudospin information over long distances and establishes the feasibility of an all-axis controllable quantum system in the spatial, spectral, momentum, and polarization domains. 2026-09-30T00:00:00Z Text Journal contribution 10.1021/acsphotonics.6c00182.s001 https://figshare.com/articles/journal_contribution/Long_Range_Coherent_Valley_Pseudospin_Transport_via_Bloch_Surface_Wave_Polaritons_in_Monolayer_Transition_Metal_Dichalcogenides/34032107 CC BY-NC 4.0