BROADBAND LIGHT BENDING WITH PLASMONIC NANOANTENNAS PDF

BROADBAND LIGHT BENDING WITH PLASMONIC NANOANTENNAS PDF

Request PDF on ResearchGate | Broadband Light Bending with Plasmonic Nanoantennas | The precise manipulation of a propagating wave using phase. Broadband light bending with plasmonic nanoantennas. Xingjie Ni, Naresh K. Emani, Alexander V. Kildishev, Alexandra Boltasseva, Vladimir. Generalized Snell’s Law and bending near-IR light with optical nanoantennae .. Broadband light bending with plasmonic nanoantennas.

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It should be possible to extend our mechanism to other frequencies by using different materials and structure parameters. A key feature of our plasmonix metasurface design is its ease of fabrication see Figure 3. By continuing to use this site, you agree to our use of cookies. Wifh displayed with MathJax. Schematic representation of the fabrication procedure for the bilayer plasmonic metasurface.

Angle between two arms of the V-shape. We marry these two metasurfaces together to form a bilayer metasurface.

Indeed, many researchers have explored various designs for the deflection of an impinging beam into anomalous refraction channels according to the generalized Snell’s law by imparting a controlled gradient of phase discontinuities along the metasurface.

In addition to providing all the benefits of plasmonic metasurfaces in terms of light manipulation with our hybrid bilayer metasurface, we also overthrow the theoretical efficiency upper limit of ultrathin plasmonic metasurfaces. With our ultrathin hybrid structure we also counter-intuitively overturn the widely accepted idea that dielectric metasurfaces outperform plasmonic ones because of lower ohmic loss. OSA will be closed for the holidays from 21 December Equations displayed with MathJax.

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Gaburro, Light propagation with phase discontinuities: This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. In summary, we have designed and experimentally demonstrated a new metasurface configuration. By continuing to use this site, you agree to our use of cookies.

Broadband light bending with plasmonic nanoantennas — Penn State

broadbabd It consists of a top layer of gold nanoantennas and a bottom layer of its Babinet-inverted pattern. Capasso, A broadband, background-free quarter-wave plate based on plasmonic metasurfaces, Nano Lett. Moreover, we have achieved a strikingly high extinction ratio of OSA will be closed for the holidays from 21 December Please login to set citation alerts. Remember me on this computer.

Home To Top Next Article. In this way we manage to avoid the lift-off process. Grbic, Efficient light bending with isotropic metamaterial Huygens’ surfaces, Nano Lett.

These layers are separated by conformal plasmonif silsesquioxane HSQ pillars. Our one-step fabrication process eliminates the challenges previously associated with sample preparation. Our findings show that the generalized Snell’s law still applies in the presence of such strong mutual coupling. In addition, there has been particular interest in ultrathin metasurfaces operating in transmission mode, but these metasurfaces are still in their infancy because of their low manipulation efficiency and extremely complex fabrication methods especially for visible light manipulation.

High conversion efficiency performance of the optimized bilayer plasmonic metasurface. The subunit cell of the bilayer metasurface is shown in the bottom right. To design the geometry for a given wavelength, we therefore tailor the parameters of all subunit cells as a whole by considering the coupling of pladmonic neighboring elements. The light spots on the screen in the foreground are combined photoimages of the transmitted light beams for different wavelengths.

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Privacy Terms of Use. We review the exciting field of optical metamaterials and outline the recent progress in developing tunable and active MMs, semiconductor-based and loss-free negative-index MMs. Click here to see what’s new. Shalaev, Broadband light bending with plasmonic nanoantennas, Sciencep.

Privacy Terms of Use. We have thus shown that the common perception of the superiority of silicon metasurfaces is uncertain. Such complicated designs result in great challenges for their application at visible wavelengths. Please login to set citation alerts. We also discuss a new approach for broadband light bending by using symmetry-breaking meta-surfaces with plasmonic nanoantennas.

Broadband light bending with plasmonic nanoantennas.

Abstract We review the exciting field of optical metamaterials and outline the recent progress in developing tunable and active MMs, semiconductor-based and loss-free negative-index MMs. If you require urgent assistance, please contact Customer Service. Integrated Photonics Research, Silicon and Nanophotonics Zentgraf, Lpasmonic plasmonic metalens for visible light, Nat.