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Conferences > CLEO_FS > 2023 > FTh3C > FTh3C.7

Topologically protected polarization singularities in four dimensions

Christina M. Spaegele, Michele Tamagnone, Soon Wei Daniel Lim, Marcus Ossiander, Maryna Meretska, and Federico Capasso

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Abstract

We design and experimentally demonstrate a new type of topologically protected polarization singularity using metasurfaces. The singularity is placed in the four-dimensional space formed by the three Cartesian spatial dimensions and the wavelength of light.

© 2023 The Author(s)

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