{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:08:32Z","timestamp":1785431312897,"version":"3.56.0"},"reference-count":70,"publisher":"Optica Publishing Group","issue":"12","license":[{"start":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T00:00:00Z","timestamp":1780531200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T00:00:00Z","timestamp":1780531200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100003977","name":"Israel Science Foundation","doi-asserted-by":"crossref","award":["1785\/22"],"award-info":[{"award-number":["1785\/22"]}],"id":[{"id":"10.13039\/501100003977","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/04sazxf24","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2026,6,15]]},"abstract":"<jats:p>\n                    Light can carry a spin angular momentum, an intrinsic and extrinsic orbital angular momentum, associated with circular polarization, optical vortex beams, and varying beam trajectories, respectively. The interplay between these momenta yields the spin\u2013orbit interaction of light, in which the spin (circular polarization) controls the spatial (orbital) degrees of freedom of light: either the extrinsic (trajectory) or the intrinsic orbital angular momentum (vortex). While the well-known spin\u2013orbit interaction of light plays a crucial role in nano-optics by providing spin-controlled light manipulation, the interaction between the intrinsic and the extrinsic orbital angular momentum\u2014\n                    <jats:italic>the orbit\u2013orbit interaction of light<\/jats:italic>\n                    \u2014has remained elusive. In this interplay, the helical phase fronts of optical vortices control the spatial trajectory of light, giving rise to vortex-dependent shifts of optical beams. We report the orbit\u2013orbit interaction of light in a plasmonic ellipse cavity, whose unique geometry facilitates the interplay when a vortex is considered in one of the foci of the ellipse. In this configuration, the orbit\u2013orbit interaction is achieved by the interplay between the vortex of the source and the ellipse-induced transverse shift of the source beam, positioned at one of the focal points, thus inducing transverse vortex-dependent shifts at the second focal point. Strikingly, the orbit\u2013orbit interaction of light significantly enhances the toolbox available for controlling light by leveraging the\n                    <jats:italic>manifold<\/jats:italic>\n                    orbital angular momentum states for vortex-controlled light manipulation\u2014in contrast to light manipulation based on the spin\u2013orbit interaction, which exploits the\n                    <jats:italic>binary<\/jats:italic>\n                    polarization helicity.\n                  <\/jats:p>","DOI":"10.1364\/oe.597164","type":"journal-article","created":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T18:41:05Z","timestamp":1780598465000},"page":"21533","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Orbit\u2013orbit photonics: harnessing vortex\u2013trajectory interplay for light manipulation"],"prefix":"10.1364","volume":"34","author":[{"given":"Raghvendra P.","family":"Chaudhary","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05tkyf982","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Imon","family":"Kalyan","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05tkyf982","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2929-9707","authenticated-orcid":true,"given":"Nir","family":"Shitrit","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05tkyf982","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,6,4]]},"reference":[{"key":"oe-34-12-21533-R1","author":"Allen","year":"2003"},{"key":"oe-34-12-21533-R2","author":"Andrews","year":"2013"},{"key":"oe-34-12-21533-R3","doi-asserted-by":"publisher","first-page":"796","DOI":"10.1038\/nphoton.2015.201","type":"journal-article","volume":"9","author":"Bliokh","year":"2015","journal-title":"Nat. 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