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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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.

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 all neighboring elements. We’ve also updated our Privacy Notice. Shalaev, Broadband light bending with plasmonic nanoantennas, Sciencep.

These layers are separated by conformal hydrogen silsesquioxane HSQ pillars. Width of the nanoantennas. In conjunction with the high efficiency, our bilayer hybrid configuration may thus facilitate and enable the practical application of the metasurface concept. If you require urgent assistance, please contact Customer Service. Although our design consists of two separated layers, this fabrication process is arguably simpler than for single-layer metasurfaces.

Please login to wtih citation alerts. We use electron beam lithography to pattern the structure on a quartz substrate with a layer nm thick of hydrogen silsesquioxane. Equations plazmonic with MathJax.

Negative Refraction and Light Bending with Plasmonic Nanoantennas

In this way we manage to avoid the lift-off process. A key feature of nanoantennaz bilayer metasurface design is its ease of fabrication see Figure 3. Equations displayed with MathJax. 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. Password Forgot your password?

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OSA will be closed for the holidays from 21 December It should be possible to extend our mechanism to other frequencies by using different materials and structure parameters. Remember me on this computer. Schematic representation of the fabrication procedure for the bilayer plasmonic metasurface.

In our work we have proposed and experimentally demonstrated an efficient bilayer plasmonic metasurface that works in transmission mode at visible frequencies see Figure 1. In general, all these promising metasurfaces can be categorized as operating either in reflection mode or transmission mode. By continuing to use this site, you agree to our use of cookies. We subsequently use an electron-beam evaporator for gold deposition.

Broadband light bending with plasmonic nanoantennas — Penn State

We also discuss a new approach for broadband light bending by using symmetry-breaking meta-surfaces with plasmonic nanoantennas. High conversion efficiency performance of the optimized bilayer plasmonic metasurface. Zentgraf, Dual-polarity plasmonic metalens for visible light, Nat.

Home To Top Next Article. Length of the nanoantenna arms. Password Forgot your password? Such complicated designs result in great challenges for their application at visible wavelengths.

Login or Create Account. The subunit cell of the bilayer metasurface is shown in the bottom right. Privacy Terms of Use. 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.

Our one-step fabrication for the bilayer metasurface is more viable and cost-effective, and therefore largely beneficial for practical applications. He, High-efficiency broadband anomalous reflection by gradient meta-surfaces, Nano Lett. Right click equation to reveal menu options. Nominal space between top and bottom layers. In contrast, our compact design gives rise to strong intra-plane coupling among the unit cells and to strong inter-plane coupling between the layers.

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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. 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.

Although metasurfaces that operate in reflection mode exhibit relatively higher efficiencies than those in transmission mode, 4, 5 the reflective metasurfaces also introduce inconveniences in many applications. Coupling a nanoantenna metasurface with its Babinet-inverted counterpart gives rise to extremely high-performance bilayer structures.

Capasso, A broadband, background-free quarter-wave plate based on plasmonic metasurfaces, Nano Lett.

Broadband light bending with plasmonic nanoantennas

High-efficiency hybrid plasmonic metasurfaces. Our findings show that the generalized Snell’s law still applies in the presence of such strong mutual coupling. We exploit both this intra-layer and inter-layer coupling to enhance the overall manipulation efficiency. Nanotechnology High-efficiency hybrid plasmonic metasurfaces Fei Qin, Lei Nanoantnenas, Shengtao Mei, Minghui Hong and Cheng-Wei Qiu Coupling a nanoantenna metasurface with its Babinet-inverted counterpart gives rise to extremely high-performance bilayer structures.

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 broadnand light manipulation.