Observation of Full-Parameter Jones Matrix in Bilayer Metasurface

Abstract

Metasurfaces, artificial 2D structures, have been widely used for the design of various functionalities in optics. Jones matrix, a 2*2 matrix with eight parameters, provides the most complete characterization of the metasurface structures in linear optics, and the number of free parameters (i.e., degrees of freedom, DOFs) in the Jones matrix determines the limit to what functionalities we can realize. Great efforts have been made to continuously expand the number of DOFs, and a maximal number of six has been achieved recently. However, the realization of 'holy grail' goal with eight DOFs (full free parameters) has been proven as a great challenge so far. Here, we show that by cascading two layer metasurfaces and utilizing the gradient descent optimization algorithm, a spatially varying Jones matrix with eight DOFs is constructed and verified numerically and experimentally in optical frequencies. Such ultimate control unlocks new opportunities to design optical functionalities that are unattainable with previously known methodologies and may find wide potential applications in optical fields.

arXiv comment53 paegs, 4 figures

References in corpus (9)

• A review of metasurfaces: physics and applications
• An advanced Jones calculus for the classification of periodic metamaterials
• Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations
• Metasurface holography: from fundamentals to applications
• Full-color complex-amplitude vectorial holograms based on multi-freedom metasurfaces
• Optical secret sharing with cascaded metasurface holography
• Arbitrary Polarization Conversion Dichroism Metasurfaces for All-in-One Full Poincaré Sphere Polarizers
• Generation of cylindrical vector vortex beams by two cascaded metasurfaces
• General lossless polarization and phase transformation using bilayer metasurfaces

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