Electromagnetic field localization behind a mesoscale dielectric particle with a broken symmetry: a photonic hook phenomenon

O. V. Minin; I. V. Minin; K. I. Zaytsev; G. M. Katyba; V. N. Kurlov; Liyand Yue; Zengbo Wang

doi:10.1117/12.2555376

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2 April 2020 Electromagnetic field localization behind a mesoscale dielectric particle with a broken symmetry: a photonic hook phenomenon

O. V. Minin, I. V. Minin, K. I. Zaytsev, G. M. Katyba, V. N. Kurlov, Liyand Yue, Zengbo Wang

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Proceedings Volume 11368, Photonics and Plasmonics at the Mesoscale; 1136807 (2020) https://doi.org/10.1117/12.2555376
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

During last several years it was shown, that an electromagnetic field can be made to curve after propagation through a simple dielectric mesoscale Janus particle of special shape, which adds a newfound degree of simplicity. This effect was discovered by I.V.Minin and O.V.Minin and termed ‘photonic hooks’– it is an unique electromagnetic self-bending subwavelength structured light beams configuration behind a mesoscale particle with a broken symmetry and differ from Airy-family beams. PH features the radius of curvature, which is about 2 times smaller than the electromagnetic wavelength - this is the smallest curvature radius of electromagnetic waves ever reported. The nature of a photonic hook is in dispersion of the phase velocity of the waves inside of particle, resulting in interference. Here, we report an experimental verification of the photonic hook effect in terahertz waveband.

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O. V. Minin, I. V. Minin, K. I. Zaytsev, G. M. Katyba, V. N. Kurlov, Liyand Yue, and Zengbo Wang "Electromagnetic field localization behind a mesoscale dielectric particle with a broken symmetry: a photonic hook phenomenon", Proc. SPIE 11368, Photonics and Plasmonics at the Mesoscale, 1136807 (2 April 2020); https://doi.org/10.1117/12.2555376

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