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5 March 2022 Exploiting the topological features of the S-matrix for meta-optics
Patrice Genevet, Qinghua Song, Jesús Zúñiga-Pérez, Boubacar Kanté
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Proceedings Volume PC12011, High Contrast Metastructures XI; PC120110G (2022) https://doi.org/10.1117/12.2611699
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
The topological properties of the S-Matrix operating near their singular points offer new degree of freedom to address optical phase engineering. Here we engineer topologically-protected full 2𝜋− phase on a specific reflected polarization channel by choosing metasurface building blocks disposed along an arbitrarily closed trajectory in parameter space to encircle a singularity. The ease of implementation of the topological phase, together with its compatibility with other phase-addressing mechanisms including Pancharatnam-Berry phase, bring topological properties into the realm of industrial applications.
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Patrice Genevet, Qinghua Song, Jesús Zúñiga-Pérez, and Boubacar Kanté "Exploiting the topological features of the S-matrix for meta-optics", Proc. SPIE PC12011, High Contrast Metastructures XI, PC120110G (5 March 2022); https://doi.org/10.1117/12.2611699
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KEYWORDS
Phase shift keying
Scattering
Polarization
Absorption
Modulation
Photonics
Plasmonics
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