posted on 2023-06-10, 01:18authored byJacob 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