Directional Scattering-Induced Optical Forces on a Mie Particle near a Metal Interface
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866916017462050816 |
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| author | Borodulin, Semyon Kostina, Natalia Petrov, Mihail |
| author_facet | Borodulin, Semyon Kostina, Natalia Petrov, Mihail |
| contents | Optical manipulation of Mie-resonant dielectric nanoparticles is strongly influenced by their enhanced scattering and multipolar response, which fundamentally modifiesthe balance of optical forces. In this work, we study the optical forces acting on a resonant dielectric nanoparticle placed near a metal interface, where scattering occurs into both free-space and surface plasmon-polariton (SPP) channels. We show that the interference of electric and magnetic dipole moments leads to highly directional scattering in these channels, and the direction and magnitude of the scattering-induced force are directly linked to the angular directivity of the corresponding radiation channels. We show that in a cross-beam configuration, where the radiation-pressure contribution is suppressed, the optical force can be changed for almost 2π in a wide range of particle sizes that provides a route toward optical sorting of resonant nanoparticles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_19428 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Directional Scattering-Induced Optical Forces on a Mie Particle near a Metal Interface Borodulin, Semyon Kostina, Natalia Petrov, Mihail Optics Optical manipulation of Mie-resonant dielectric nanoparticles is strongly influenced by their enhanced scattering and multipolar response, which fundamentally modifiesthe balance of optical forces. In this work, we study the optical forces acting on a resonant dielectric nanoparticle placed near a metal interface, where scattering occurs into both free-space and surface plasmon-polariton (SPP) channels. We show that the interference of electric and magnetic dipole moments leads to highly directional scattering in these channels, and the direction and magnitude of the scattering-induced force are directly linked to the angular directivity of the corresponding radiation channels. We show that in a cross-beam configuration, where the radiation-pressure contribution is suppressed, the optical force can be changed for almost 2π in a wide range of particle sizes that provides a route toward optical sorting of resonant nanoparticles. |
| title | Directional Scattering-Induced Optical Forces on a Mie Particle near a Metal Interface |
| topic | Optics |
| url | https://arxiv.org/abs/2604.19428 |