• Corpus ID: 248810987

Dielectric Mie Voids: Confining Light in Air

  title={Dielectric Mie Voids: Confining Light in Air},
  author={Mario Hentschel and Kirill L. Koshelev and Florian Sterl and Steffen Both and Julian Karst and Lida Shamsafar and Thomas Weiss and Yu. A. Kivshar and Harald Giessen},
Manipulating light on the nanoscale has become a central challenge in metadevices, resonant surfaces, nanoscale optical sensors, and many more, and it is largely based on resonant light confinement in dispersive and lossy metals and dielectrics. Here, we experimentally implement a novel strategy for dielectric nanophotonics: Resonant subwavelength confinement of light in air. We demonstrate that voids created in high-index dielectric host materials support localized resonant modes with… 

Figures from this paper



Designing dielectric resonators on substrates: combining magnetic and electric resonances.

This work systematically study the influence of particle geometry and dielectric environment on the resonant behavior of dielectrics resonators in the visible to near-IR spectral range, and shows that the directional radiation profiles of the ED and MD modes in resonators on a substrate are similar to those of point-dipoles close to a substrate.

Planar Photonics with Metasurfaces

Progress in the optics of metasurfaces is reviewed and promising applications for surface-confined planar photonics components are discussed and the studies of new, low-loss, tunable plasmonic materials—such as transparent conducting oxides and intermetallics—that can be used as building blocks for metAsurfaces will complement the exploration of smart designs and advanced switching capabilities.

Tailoring directional scattering through magnetic and electric resonances in subwavelength silicon nanodisks.

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.

Plasmonic nanoantennas: fundamentals and their use in controlling the radiative properties of nanoemitters.

Plasmonic resonances in nanoantennas overcome constraints on the resolution to which an object can be imaged, as well as the size of the transverse cross section of efficient guiding structures to the wavelength dimension, allowing unprecedented control of light-matter interactions within subwavelength volumes.

Generalized Brewster-Kerker effect in dielectric metasurfaces

Polarization is one of the key properties defining the state of light. It was discovered in the early 19 century by Brewster, among others, while studying light reflected from materials at different

Nonlinear plasmonics

NATURE PHOTONICS | VOL 6 | NOVEMBER 2012 | www.nature.com/naturephotonics 737 Nonlinear optical effects (Box 1) have an important role in modern photonic functionalities, including control over the

Dielectric gradient metasurface optical elements

The experimental realization and operation of dielectric gradient metasurface optical elements capable of also achieving high efficiencies in transmission mode in the visible spectrum are described.

Giant nonlinear response from plasmonic metasurfaces coupled to intersubband transitions

The proposed structures can act as ultrathin highly nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.

Dielectric nanohole array metasurface for high-resolution near-field sensing and imaging

The metasurface is designed and realised to support two optical modes both with sharp Fano resonances that exhibit relatively high Q-factors and strong spatial confinement, thereby concurrently optimizing the device for both imaging and biochemical sensing.

Observation of trapped light within the radiation continuum

It is predicted and shown experimentally that light can be perfectly confined in a patterned dielectric slab, even though outgoing waves are allowed in the surrounding medium.