Terahertz emission mediated by ultrafast time-varying metasurfaces
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PhysRevResearch.3.L042006.pdf
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ArticleAuthors
Tunesi, J.
Peters, L.

Gongora, J. S. Totero

Olivieri, L.

Fratalocchi, Andrea

Pasquazi, A.
Peccianti, M.

KAUST Department
Computer, Electrical and Mathematical Science and Engineering (CEMSE) DivisionElectrical and Computer Engineering Program
PRIMALIGHT Research Group
Date
2021-10-18Submitted Date
2021-08-16Permanent link to this record
http://hdl.handle.net/10754/672914
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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.Citation
Tunesi, J., Peters, L., Totero Gongora, J. S., Olivieri, L., Fratalocchi, A., Pasquazi, A., & Peccianti, M. (2021). Terahertz emission mediated by ultrafast time-varying metasurfaces. Physical Review Research, 3(4). doi:10.1103/physrevresearch.3.l042006Sponsors
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.Publisher
American Physical Society (APS)Journal
Physical Review ResearchAdditional Links
https://link.aps.org/doi/10.1103/PhysRevResearch.3.L042006ae974a485f413a2113503eed53cd6c53
10.1103/physrevresearch.3.l042006
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