Highly efficient and broadband wide-angle holography using patch-dipole nanoantenna reflectarrays

Yuval Yifat, Michal Eitan, Zeev Iluz, Yael Hanein, Amir Boag, Jacob Scheuer*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

147 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)2485-2490
Number of pages6
JournalNano Letters
Volume14
Issue number5
DOIs
StatePublished - 14 May 2014

Funding

FundersFunder number
U.S. Department of Defense

    Keywords

    • Nanoantenna
    • coupled patch-dipole antennas
    • holography
    • localized surface plasmon
    • metamaterials

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