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arXiv · 1910.09543

Photonic hook -- a new type of subwavelength self-bending structured light beams: a tutorial review

Igor V. Minin·Oleg V. Minin·Liyang Yue·Zengbo Wang·Valentyn S. Volkov·Demetrios N. Christodoulides
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Abstract

During the last 2 years, it was shown that an electromagnetic beam configuration can be bent after propagation through an asymmetrically shaped (Janus) dielectric particle, which adds a new degree of simplicity for generation of a curved light beam. This effect is termed "photonic hook" (PH) and differs from Airy-family beams. PH features the smallest curvature radius of electromagnetic waves ever reported which is about 2 times smaller than the wavelength of the electromagnetic wave. The nature of a photonic hook is a the dispersion of the phase velocity of the waves inside a trapezoid or composed particle, resulting in an interference afterwards.

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Igor V. Minin, Oleg V. Minin, Liyang Yue, Zengbo Wang, Valentyn S. Volkov, Demetrios N. Christodoulides. 2019-10-20. Photonic hook -- a new type of subwavelength self-bending structured light beams: a tutorial review. https://arxiv.org/abs/1910.09543

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