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Proceedings Paper

Fundamental limitations of ultra-flat resonant dielectric metasurfaces
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Paper Abstract

There are two physical effects that are exploited nowadays to implement flat metalenses requiring 2𝜋-phase excursion, either subwavelength guidance implementing varying propagation delays, or resonant confinement combining two resonances. We compare both approaches and identify possible limitations with the second approach.

Paper Details

Date Published: 26 February 2020
PDF: 4 pages
Proc. SPIE 11290, High Contrast Metastructures IX, 112900U (26 February 2020); doi: 10.1117/12.2550172
Show Author Affiliations
Carlo Gigli, Lab. Matériaux et Phénomènes Quantiques, Univ. de Paris, CNRS (France)
Pierre Chavel, Lab. Hubert Curien, Univ. de Lyon, Univ. Jean Monnet de Saint Etienne, CNRS (France)
Philippe Lalanne, Lab. Photonique, Numérique et Nanosciences, IOGS, Univ. Bordeaux, CNRS (France)

Published in SPIE Proceedings Vol. 11290:
High Contrast Metastructures IX
Connie J. Chang-Hasnain; Andrei Faraon; Weimin Zhou, Editor(s)

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