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Correlated Disordered Plasmonic Nanostructures Arrays for Augmented Reality

The optical properties of metallic nanoparticles are exploited to design transparent surfaces used in innovative display devices. The subwavelength characteristic dimensions of nanoparticles are optimized to obtain a reflection efficiency at the desired color without altering the overall transparency quality of the substrate. Their spatial arrangement is chosen to eliminate non-specular diffraction, regardless of their spatial density. The responses of different silver nanoparticle arrangements (periodic or correlated-disordered arrangements, different spatial densities and nanoparticle dimensions) are analyzed numerically and experimentally by measuring the reflectance and transmittance spectra in the visible. It is shown that correlated-disordered arrangements decrease the effect of non-specular diffraction occurring at low spatial densities of nanoparticles. This low density of nanoparticles makes it possible to obtain a better overall transparency of the device. These configurations are promising for the design of innovative display devices of interest to the transport industry (e. g. head-up vision in the automobile) or "augmented reality" applications.

Partners :
- Centre de Nanosciences et de Nanotechnologies, CNRS / Université Paris-Sud
- Institut Fresnel, CNRS / Université d’Aix-Marseille / Centrale Marseille
- Groupe PSA

Reference : "Correlated Disordered Plasmonic Nanostructures Arrays for Augmented Reality", Hervé Bertin, Yoann Brûlé, Giovanni Magno, Thomas Lopez, Philippe Gogol, Laetitia Pradere, Boris Gralak, David Barat, Guillaume Demésy and Beatrice Dagens. ACS Photonics, 2018, 5 (7), pp 2661–2668,

DOI : 10.1021/acsphotonics.8b00168

Keywords : nanosciences, optics, metasurface, augmented reality

Contact Institut Fresnel : Boris Gralak or Guillaume Demésy

Contact Centre de nanosciences et de nanotechnologies : Béatrice Dagens

Other publications on this subject :
La lettre de l’innovation du CNRS, n°45, Ajuster la réflectance d’un verre tout en préservant sa qualité de transparence