Experimental observation of the orbital Hall effect of light through pure orbit–orbit interaction for randomly and radially polarized vortex beams

The orbit–orbit interaction of light leads to fundamentally rich optical phenomena whose experimental exploration and theoretical understanding remain challenging. Here, we investigate polarization-independent vortex-induced beam shifts for light beams possessing random polarization and radial polar...

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Veröffentlicht in:Journal of the Optical Society of America. B, Optical physics Optical physics, 2021-07, Vol.38 (7), p.2180
Hauptverfasser: B S, Athira, Mukherjee, Sounak, Laha, Anuraj, Bar, Koushik, Nandy, Dibyendu, Ghosh, Nirmalya
Format: Artikel
Sprache:eng
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Zusammenfassung:The orbit–orbit interaction of light leads to fundamentally rich optical phenomena whose experimental exploration and theoretical understanding remain challenging. Here, we investigate polarization-independent vortex-induced beam shifts for light beams possessing random polarization and radial polarization. The experiments reveal an intriguing manifestation of the orbital Hall effect of light as a consequence of orbit–orbit interactions and resulting conservation of total angular momentum. An interferometric scheme is experimentally implemented to quantify the change in the phase structure of the orbital angular momentum carrying beam as signatures of the orbital Hall effect of light arising due to partial reflection at a dielectric interface. We also demonstrate, and thus corroborate, the conservation of total angular momentum for such vortex-induced beam shifts.
ISSN:0740-3224
1520-8540
DOI:10.1364/JOSAB.426304