High‐Efficiency Dielectric Huygens’ Surfaces
- M. Decker, I. Staude, Y. Kivshar
- Physics
- 1 June 2015
Optical metasurfaces have developed as a breakthrough concept for advanced wave‐front engineering enabled by subwavelength resonant nanostructures. However, reflection and/or absorption losses as…
Tailoring directional scattering through magnetic and electric resonances in subwavelength silicon nanodisks.
- I. Staude, A. Miroshnichenko, Y. Kivshar
- PhysicsACS Nano
- 21 August 2013
It is demonstrated theoretically and experimentally that the interference of electric and magnetic optically induced modes in individual subwavelength silicon nanodisks can lead to the suppression of resonant backscattering and to enhanced resonant forward scattering of light.
Imaging-based molecular barcoding with pixelated dielectric metasurfaces
- Andreas Tittl, A. Leitis, H. Altug
- ChemistryScience
- 8 June 2018
An imaging-based nanophotonic technique can resolve absorption fingerprints without the need for spectrometry, frequency scanning, or moving mechanical parts, thereby paving the way toward sensitive and versatile miniaturized mid-infrared spectroscopy devices.
Active tuning of all-dielectric metasurfaces.
- J. Sautter, I. Staude, Y. Kivshar
- Physics, Materials ScienceACS Nano
- 17 March 2015
Dynamic tuning of electric and magnetic resonances in all-dielectric silicon nanodisk metasurfaces in the telecom spectral range based on the temperature-dependent refractive-index change of a nematic liquid crystal is experimentally demonstrated.
Observation of discrete vortex solitons in optically induced photonic lattices.
- D. Neshev, T. Alexander, Zhigang Chen
- PhysicsPhysical Review Letters
- 5 September 2003
We report on the first experimental observation of discrete vortex solitons in two-dimensional optically induced photonic lattices. We demonstrate strong stabilization of an optical vortex by the…
Electrically Tunable Transparent Displays for Visible Light Based on Dielectric Metasurfaces
Tunable dielectric metasurfaces able to manipulate visible light with high efficiency are promising for applications in displays, reconfigurable optical components, beam steering, and spatial light…
Enhanced third-harmonic generation in silicon nanoparticles driven by magnetic response.
- M. Shcherbakov, D. Neshev, Y. Kivshar
- PhysicsNano letters (Print)
- 21 October 2014
Enhanced third-harmonic generation from silicon nanodisks exhibiting both electric and magnetic dipolar resonances is observed and the field localization at the magnetic resonance results in two orders of magnitude enhancement of the harmonic intensity with respect to unstructured bulk silicon.
Generation and near-field imaging of Airy surface plasmons.
- A. Minovich, A. Klein, N. Janunts, T. Pertsch, D. Neshev, Y. Kivshar
- PhysicsPhysical Review Letters
- 13 May 2011
The generation and near-field imaging of nondiffracting surface waves, plasmonic Airy beams, propagating on the surface of a gold metal film are demonstrated, suggesting novel applications in plAsmonic circuitry and surface optical manipulation.
Spatial solitons in optically induced gratings.
- D. Neshev, E. Ostrovskaya, Y. Kivshar, W. Krolikowski
- PhysicsOptics Letters
- 21 January 2003
The generation of spatial bright solitons similar to those observed in arrays of coupled optical waveguides are demonstrated and pairs of out-of-phasesolitons, which resemble twisted localized states in nonlinear lattices are created.
Efficient Polarization-Insensitive Complex Wavefront Control Using Huygens’ Metasurfaces Based on Dielectric Resonant Meta-atoms
- K. Chong, Lei Wang, Y. Kivshar
- Physics
- 2 February 2016
Metasurfaces have shown great promise for the control of optical wavefronts, thus opening new pathways for the development of efficient flat optics. In particular, Huygens’ metasurfaces based on…
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