Terahertz emission mediated by ultrafast time-varying metasurfaces

J. Tunesi; L. Peters; J. S. Totero Gongora; L. Olivieri; Andrea Fratalocchi; A. Pasquazi; M. Peccianti

doi:10.1103/physrevresearch.3.l042006

Terahertz emission mediated by ultrafast time-varying metasurfaces

J. Tunesi, L. Peters, J. S. Totero Gongora, L. Olivieri, Andrea Fratalocchi, A. Pasquazi, M. Peccianti

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8 Scopus citations

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	https://doi.org/10.1103/physrevresearch.3.l042006
State	Published - Oct 18 2021

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10.1103/physrevresearch.3.l042006

https://repository.kaust.edu.sa/bitstream/10754/672914/1/PhysRevResearch.3.L042006.pdf

Cite this

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title = "Terahertz emission mediated by ultrafast time-varying metasurfaces",

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.",

author = "J. Tunesi and L. Peters and Gongora, {J. S. Totero} and L. Olivieri and Andrea Fratalocchi and A. Pasquazi and M. Peccianti",

note = "KAUST Repository Item: Exported on 2021-10-22 Acknowledgements: 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{\textquoteright}s Horizon 2020 Research and Innovation Programme Grant Agreements No. 725046 and No. 851758.",

year = "2021",

month = oct,

day = "18",

doi = "10.1103/physrevresearch.3.l042006",

language = "English (US)",

volume = "3",

journal = "Physical Review Research",

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TY - JOUR

T1 - Terahertz emission mediated by ultrafast time-varying metasurfaces

AU - Tunesi, J.

AU - Peters, L.

AU - Gongora, J. S. Totero

AU - Olivieri, L.

AU - Fratalocchi, Andrea

AU - Pasquazi, A.

AU - Peccianti, M.

N1 - KAUST Repository Item: Exported on 2021-10-22 Acknowledgements: 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.

PY - 2021/10/18

Y1 - 2021/10/18

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/672914

UR - https://link.aps.org/doi/10.1103/PhysRevResearch.3.L042006

U2 - 10.1103/physrevresearch.3.l042006

DO - 10.1103/physrevresearch.3.l042006

M3 - Article

SN - 2643-1564

VL - 3

JO - Physical Review Research

JF - Physical Review Research

IS - 4

ER -

Terahertz emission mediated by ultrafast time-varying metasurfaces

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Terahertz emission mediated by ultrafast time-varying metasurfaces

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