Optomechanical Manipulation with Hyperbolic Metasurfaces

Aliaksandra Ivinskaya, Natalia Kostina, Alexey Proskurin, Mihail I. Petrov, Andrey A. Bogdanov, Sergey Sukhov, Alexey V. Krasavin, Alina Karabchevsky, Alexander S. Shalin, Pavel Ginzburg

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Auxiliary nanostructures introduce additional flexibility into optomechanical manipulation schemes. Metamaterials and metasurfaces capable to control electromagnetic interactions at the near-field regions are especially beneficial for achieving improved spatial localization of particles, reducing laser powers required for trapping, and for tailoring directivity of optical forces. Here, optical forces acting on small particles situated next to anisotropic substrates, are investigated. A special class of hyperbolic metasurfaces is considered in details and is shown to be beneficial for achieving strong optical pulling forces in a broad spectral range. Spectral decomposition of Green's functions enables identifying contributions of different interaction channels and underlines the importance of the hyperbolic dispersion regime, which plays the key role in optomechanical interactions. Homogenized model of the hyperbolic metasurface is compared to its metal-dielectric multilayer realizations and is shown to predict the optomechanical behavior under certain conditions related to composition of the top layer of the structure and its periodicity. Optomechanical metasurfaces open a venue for future fundamental investigations and a range of practical applications, where accurate control over mechanical motion of small objects is required.

Original languageEnglish
Pages (from-to)4371-4377
Number of pages7
JournalACS Photonics
Volume5
Issue number11
DOIs
StatePublished - 21 Nov 2018

Keywords

  • anisotropic substrate
  • hyperbolic dispersion
  • multilayer
  • nanoparticle
  • optical pulling forces
  • optical tweezers
  • surface plasmon
  • tractor beam

Fingerprint

Dive into the research topics of 'Optomechanical Manipulation with Hyperbolic Metasurfaces'. Together they form a unique fingerprint.

Cite this