ArticleScientific reports2026
Analyzing Orbital Angular Momentum (OAM) mode via localized beam sampling.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors.
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Abstract
Light beams carrying Orbital Angular Momentum (OAM) are of broad interest in fundamental optics and have important applications in communication, sensing, and metrology. Conventional techniques require capturing full-beam spot with large optics, restricting scalability and integration. In this work, we demonstrate that both the order and sign of OAM modes can be identified by sampling only a small part of the beam. Reliable mode discrimination was achieved using only [Formula: see text] of the beam cross-section. Experiments with [Formula: see text] agreed with analytical predictions within [Formula: see text] error, and simulations up to [Formula: see text] confirmed systematic order-dependent shifts. This localized sampling approach provides a hardware-efficient and scalable pathway for OAM detection in optical communication, metrology, and integrated photonics.
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Registered trials
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