Abstract
Systems with ultrafast time-varying dielectric properties represent an emerging physical framework. We demonstrate here the observation of subcycle dynamics interacting directly with an electromagnetic source comprised of morphologically constrained photoexcited carriers in a surface nanostructure. A transition to a metallic metasurface state occurs on time scales faster than the terahertz-field period, inducing large nonlinear ultrafast phase shifts in the terahertz emission and exposing an interesting physical setting.
| Original language | English (US) |
|---|---|
| Journal | Physical Review Research |
| Volume | 3 |
| Issue number | 4 |
| DOIs | |
| State | Published - Oct 18 2021 |
Bibliographical note
KAUST Repository Item: Exported on 2021-10-22Acknowledgements: J.T. acknowledges the support of the Engineering and Physical Sciences Research Council (EPSRC) through Studentship No. EP/N509784/1. J.S.T.G. acknowledges fundingfrom the Leverhulme Trust (Leverhulme Early Career Fellowship No. ECF-2020-537). A.P. acknowledges the support of the Engineering and Physical Research Council (EPSRC), Industrial Innovation Fellowship Programme, under Grant No. EP/S001018/1. This project received funding from the European Research Council (ERC) under the European Union’s
Horizon 2020 Research and Innovation Programme Grant Agreements No. 725046 and No. 851758.
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Dataset for: Terahertz Emission Mediated for Ultrafast Time-Varying Metasurfaces
Fratalocchi, A. (Creator), Tunesi, J. (Creator), Peters, L. (Creator), Gongora, J. S. T. (Creator), Olivieri, L. (Creator), Pasquazi, A. (Creator) & Peccianti, M. (Creator), University of Sussex, 2021
DOI: 10.25377/sussex.16732690.v1, http://hdl.handle.net/10754/687062
Dataset