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Terahertz emission mediated by ultrafast time-varying metasurfaces

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posted on 2023-06-10, 01:18 authored by Jacob Tunesi, Luke Peters, Juan Sebastian Totero Gongora, Luana OlivieriLuana Olivieri, A Fratalocchi, Alessia Pasquazi, Marco Peccianti
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.

Funding

UK Quantum Technology Hub for Sensors and Metrology; G1511; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL

Route to Artificial Intelligence (AI) control of micro-comb lasers; G3064; LEVERHULME TRUST; ECF-2020-537

TIMING: Time-Resolved Nonlinear Ghost Imaging; G2016; EUROPEAN UNION; 725046

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review Research

ISSN

2643-1564

Publisher

American Physical Society

Issue

4

Volume

3

Page range

1-6

Article number

aL042006

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2021-10-06

First Open Access (FOA) Date

2021-10-19

First Compliant Deposit (FCD) Date

2021-10-05

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