{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T00:35:05Z","timestamp":1775349305978,"version":"3.50.1"},"reference-count":48,"publisher":"Optica Publishing Group","issue":"24","license":[{"start":{"date-parts":[[2022,11,14]],"date-time":"2022-11-14T00:00:00Z","timestamp":1668384000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2022,11,14]],"date-time":"2022-11-14T00:00:00Z","timestamp":1668384000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11874142"],"award-info":[{"award-number":["11874142"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["12174091"],"award-info":[{"award-number":["12174091"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008082","name":"Hengyang Normal University","doi-asserted-by":"publisher","award":["18D28"],"award-info":[{"award-number":["18D28"]}],"id":[{"id":"10.13039\/501100008082","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2022,11,21]]},"abstract":"<jats:p>The optical spin-orbit interaction (SOI) caused by momentum-dependent Pancharatnam\u2013Berry phase (PB) provides new opportunities in the development of spin-optical devices, but the relatively low conversion efficiency limits its application. Here, through rigorous full-wave analyses on it in a parity-time (PT) symmetric system with thickness less than a wavelength, we find that the conversion efficiency of the SOI can be enhanced in both transmission and reflection in a wide range of incidence angles. When the parameters of the PT symmetric system meet the requirement of coherent perfect absorbers-laser mode, the effective anisotropy between the TM and TE components (e.g., a difference of their Fresnel coefficients) within the beam will be amplified dramatically, which results in significantly enhanced conversion efficiency of SOIs (up to 10<jats:sup>6<\/jats:sup>). These findings offer an effective way to modulate the SOIs with an ultra-thin PT symmetric system, and may exhibit applications in spin-orbit optical devices.<\/jats:p>","DOI":"10.1364\/oe.476367","type":"journal-article","created":{"date-parts":[[2022,11,2]],"date-time":"2022-11-02T07:00:10Z","timestamp":1667372410000},"page":"43718","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Enhancement of the conversion efficiency of optical spin-orbit interactions in PT symmetric systems"],"prefix":"10.1364","volume":"30","author":[{"given":"Yong","family":"Cao","sequence":"first","affiliation":[{"name":"Hengyang Normal University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hengyang Normal University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5199-6974","authenticated-orcid":true,"given":"Xiaohui","family":"Ling","sequence":"additional","affiliation":[{"name":"Hengyang Normal University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"285","published-online":{"date-parts":[[2022,11,14]]},"reference":[{"key":"oe-30-24-43718-R1","doi-asserted-by":"publisher","first-page":"789","DOI":"10.1038\/nphoton.2015.203","volume":"9","author":"Aiello","year":"2015","journal-title":"Nat. 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