Ultrafast Broadband Dichroism by Transient Optical Symmetry Breaking in Plasmonic Metasurfaces

Margherita Maiuri; Margherita Maiuri; Andrea Schirato; Andrea Schirato; Andrea Toma; Remo Proietti Zaccaria; Remo Proietti Zaccaria; Paolo Laporta; Paolo Laporta; Peter Nordlander; Peter Nordlander; Giulio Cerullo; Giulio Cerullo; Alessandro Alabastri; Giuseppe Della Valle; Giuseppe Della Valle

doi:10.1364/UP.2020.W3B.7

The 22nd International Conference on Ultrafast Phenomena 2020
OSA Technical Digest (Optica Publishing Group, 2020),
paper W3B.7
•https://doi.org/10.1364/UP.2020.W3B.7

Ultrafast Broadband Dichroism by Transient Optical Symmetry Breaking in Plasmonic Metasurfaces

Margherita Maiuri, Andrea Schirato, Andrea Toma, Remo Proietti Zaccaria, Paolo Laporta, Peter Nordlander, Giulio Cerullo, Alessandro Alabastri, and Giuseppe Della Valle

International Conference on Ultrafast Phenomena 2020

Washington, D.C. United States
16–19 November 2020
ISBN: 978-1-943580-83-5

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Light-Driven Dynamics (W3B)

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M. Maiuri, A. Schirato, A. Toma, R. P. Zaccaria, P. Laporta, P. Nordlander, G. Cerullo, A. Alabastri, and G. D. Valle, "Ultrafast Broadband Dichroism by Transient Optical Symmetry Breaking in Plasmonic Metasurfaces," in The 22nd International Conference on Ultrafast Phenomena 2020, F. Kärtner, M. Khalil, R. Li, F. Légaré, and T. Tahara, eds., OSA Technical Digest (Optica Publishing Group, 2020), paper W3B.7.

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Abstract

We theoretically predict and experimentally demonstrate by polarization-resolved ultrafast transient absorption that the inhomogeneous space-time distribution of photogenerated hot carriers induces a sub-picosecond symmetry breaking in a plasmonic metasurface made of highly symmetric metaatoms.

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