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Showing 1–4 of 4 results
Advanced filters: Author: Christina Spägele Clear advanced filters
  • Here, the authors experimentally demonstrate a platform for tunable polariton refractive and meta-optics based on hexagonal boron nitride and phase change Ge3Sb2Te6. This combination has the advantage of the long-lived phonon-polariton with switchable refractive index of the phase change material.

    • Kundan Chaudhary
    • Michele Tamagnone
    • Federico Capasso
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-6
  • Optical singularities are typically 1D structures like vortices. This study used metasurfaces to position ten identical point singularities with tight confinement. This could miniaturize optical systems for super-resolution microscopy and dark traps.

    • Soon Wei Daniel Lim
    • Joon-Suh Park
    • Federico Capasso
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9
  • Microcavities concentrate light in tiny volumes and are important, e.g., for semiconductor lasers and nonlinear optics. In this paper, metasurfaces are introduced to realize microcavities with arbitrary mode profiles.

    • Marcus Ossiander
    • Maryna Leonidivna Meretska
    • Federico Capasso
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9
  • The angular dependence is a well-known issue in metasurface engineering. Here the authors introduce a supercell metasurface able to implement multiple independent functions under large deflection angles with high efficiency, leading to a wavelength tunable laser with arbitrary wavefront control.

    • Christina Spägele
    • Michele Tamagnone
    • Federico Capasso
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10