441 research outputs found

    Evanescent field sensing of moving free-electrons based on optical fibre probe tips

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    We use tapered optical fiber tips functionalized with plasmonic and metamaterial nanostructures to detect, amplify and control the evanescent electromagnetic field of moving free electrons in the UV-visible spectral range

    Research data for 'All-optical pattern recognition and image processing on a metamaterial beam splitter'

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    Research data for &#39;All-optical pattern recognition and image processing on a metamaterial beam splitter&#39;</span

    Optomechanical guitar: reconfiguring metamaterials with sub-wavelength spatial resolution

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    Optomechanical metamaterials, where optical signals actuate unique elements of the nanostructure at their eigenfrequency, can be used to modulate metamaterials with sub-wavelength spatial resolution. We demonstrate the first all-optically addressable metadevice operating in the near infrared

    Metadevice for intensity modulation with sub-wavelength spatial resolution

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    Research data for Cencillo Abad, Pablo, Zheludev, Nikolay and Plum, Eric (2016) Metadevice for intensity modulation with sub-wavelength spatial resolution. Scientific Reports, 6, 37109.</span

    All-optical image recognition using metamaterials

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    Coherent interaction of waves on a thin absorbing film allows performance of ultrafast, low energy logical functions with two-dimensional images, adaptive filtering and pattern recognition that we demonstrate with a plasmonic metamaterial absorber

    Metasurface holographic light sources driven by electron beam

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    We apply holographic principles to tailor light emission resulting from the injection of free electrons into a nanostructured surface and demonstrate robust control over the direction, divergence wavelength and topological charge of radiation emission

    Metasystems for all-optical recognition and processing of images and data

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    All-optical image recognition and data processing is accomplished by engaging the effectively nonlinear coherent wave interaction on a thin absorbing metasurface. This approach relies on coherent perfect absorption and perfect transmission of matching image features and it is compatible with single-photon intensities and THz frame rates

    Electron-beam-driven metasurface holographic light sources

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    We apply holographic principles to tailor light emission resulting from the injection of free electrons into a nanostructured surface and demonstrate robust control over the direction, divergence wavelength and topological charge of radiation emission

    Research data: All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

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    Research data for Papaioannou, Maria, Plum, Eric, Valente, Joao, Rogers, Edward and Zheludev, Nikolay (2016) All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial. APL Photonics, 1, 090801. This research data description should be read and understood in the context of the corresponding manuscript. The figure numbers correspond to the figure numbers of the manuscript.</span
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