2014/03/19 by Yuval Yifat, Michal Eitan, Zeev Iluz +3
Engineering · Materials Science · Physics and Astronomy · #Broadband #Dipole #Holography #Materials science #Metamaterials and Metasurfaces Applications #Near-Field Optical Microscopy #Optics #Optoelectronics #Physics #Plasmonic and Surface Plasmon Research #physics.optics
paper · pdf · doi:10.1021/nl5001696
published as Nano Lett 14, 2485 (2014)
openalex publication_date 2014/03/19 · arxiv created 2017/02/08 · arxiv updated 2017/02/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate wide-angle, broadband, and efficient reflection holography by utilizing coupled dipole-patch nanoantenna cells to impose an arbitrary phase profile on the reflected light. High-fidelity images were projected at angles of 45 and 20° with respect to the impinging light with efficiencies ranging between 40-50% over an optical bandwidth exceeding 180 nm. Excellent agreement with the theoretical predictions was found at a wide spectral range. The demonstration of such reflectarrays opens new avenues toward expanding the limits of large-angle holography.