WebSep 15, 2024 · Photonic hook generated by the Janus microcylinder under point-source illumination A photonic hook (PH) is a high-intensity, curved focusing beam with a subwavelength waist based on the photonic nanojet effect. It is generally created by illuminating mesoscale transparent particles using optical plane waves. WebJan 1, 2024 · In this work, we use a dielectric nano-layer to tune the PNJs generated from a micro-cylinder. Two kinds of illuminations i.e. symmetric and asymmetric illumination, can be achieved by adding a nano-layer at the beam input side of the cylinder. Firstly, we investigate tunable PNJs under the condition of symmetric illumination.
Tailoring ‘photonic hook’ from Janus dielectric microbar
WebAug 23, 2024 · Photonic hooks (PHs) are a new class of curved light beams, they have been theoretically predicted and experimentally observed. The generation of photonic hook (PH) is related to the symmetry-broken of micro-particles under a plane wave illumination. Recently, twin photonic hooks (t-PHs) can be produced utilizing twin-ellipse micro-cylinder. WebDec 8, 2024 · The triangular Janus micro-prism is surrounded by air ( n0 = 1). A laser beam with 671-nm wavelength with linear polarization along the z -axis is introduced into the bottom of the triangular Janus micro-prism along the positive x direction. A photonic hook along the positive x direction is generated by the triangular Janus micro-prism. locating llc
[2007.13093] Easily tunable long photonic hook generated from …
WebThe production of photonic hook (PH) is due to the breaking of structural symmetry of a plane-wave illuminated microparticle. Herein, we presented and implemented a new … WebDec 1, 2024 · Photonic hook (PH) is a new type of PJ in which the artificial curved beam is focused by a Janus dielectric particle with a waist less than the half of wavelength [27,28,29,30]. The PH forming mechanism requires asymmetry of illumination wavefront, the dielectric particle in the manner of geometric shape, or the optical properties of particle ... WebThe production of photonic hook (PH) is due to the breaking of structural symmetry of a plane-wave illuminated microparticle. Herein, we presented and implemented a new … locating lost files