Work

Metasurface-driven and polarization controlled broadband on chip tractor beam effect for the cluster of particles

Year: 2026

Type: article

Abstract: A polarization-selective on-chip optical pulling mechanism is numerically demonstrated using a dual-layer plasmonic-dielectric metasurface. Plasmonic (Au), dielectric (SiO 2 ), and right-handed chiral Rayleigh nanospheres are studied individually and as a heterogeneous three-particle cluster under normally incident broadband x- and y-polarized illumination. Pulling forces occur in all cases but are generally spectrally limited. For the heterogeneous cluster, only y-polarized excitation produces a sustained broadband pulling regime, where all particles experience negative force over an extended wavelength range. This behavior arises from polarization-dependent surface-mode coupling and cluster-induced symmetry breaking, enabling compact polarization-controlled broadband optical manipulation.

Source: Optics Express

DOI: 10.1364/oe.598939

Authors: Jannatul Shahrin Shoshi, Mridula Rodoshi, Mahdy Rahman Chowdhury

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: North South University

Award: G7919992999