Optical binding via surface plasmon polariton interference

Natalia Kostina, Mihail Petrov, Aliaksandra Ivinskaya, Sergey Sukhov, Andrey Bogdanov, Ivan Toftul, Manuel Nieto-Vesperinas, Pavel Ginzburg, Alexander Shalin

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Optical binding allows creation of mechanically stable nanoparticle configurations owing to formation of self-consistent optical trapping potentials. While the classical diffraction limit prevents achieving deeply subwavelength arrangements, auxiliary nanostructures enable tailoring optical forces via additional interaction channels. Here, a dimer configuration next to a metal surface was analyzed in detail and the contribution of surface plasmon polariton waves was found to govern the interaction dynamics. It is shown that the interaction channel, mediated by resonant surface waves, enables achieving subwavelength stable dimers. Furthermore, the vectorial structure of surface modes allows binding between two dipole nanoparticles along the direction of their dipole moments, contrary to vacuum binding, where a stable configuration is formed in the direction perpendicular to the polarization of the dipole moments. In addition, the enhancement by one order of magnitude of the optical binding stiffness is predicted owing to the surface plasmon polariton interaction channel. These phenomena pave the way for developing new flexible optical manipulators, allowing for control over a nanoparticle trajectory on subwavelength scales and opening opportunities for optical-induced anisotropic (i.e., with different periods along the field polarization as well as perpendicular to it) organization of particles on a plasmonic substrate.

Original languageEnglish
Article number125416
JournalPhysical Review B
Volume99
Issue number12
DOIs
StatePublished - 13 Mar 2019

Funding

FundersFunder number
GOSZADANIE3.4982.2017/6.7
Horizon 2020 Framework Programme802279
Basis Foundation
Russian Foundation for Basic Research18-02-00414, 18-29-20063, 18-52-00005, 16-32-60167
Ministerio de Economía y CompetitividadFIS2015-69295-C3-1-P, FIS2012-36113-C03-03, FIS2014-55563-REDC
Ministry of Education and Science of the Russian Federation
Russian Science Foundation18-72-10127

    Fingerprint

    Dive into the research topics of 'Optical binding via surface plasmon polariton interference'. Together they form a unique fingerprint.

    Cite this