High-order harmonic generation triggered by elliptically polarized laser pulses

Informacje na temat projektu

EPHHG

Identyfikator umowy o grant: 101154681

DOI

10.3030/101154681

Realizacja projektu zakończyła się 7 Maja 2025

Data podpisania przez KE 2 Maja 2024

Data rozpoczęcia 1 Czerwca 2024

Data zakończenia 31 Maja 2026

Finansowanie w ramach

• Marie Skłodowska-Curie Actions (MSCA)

Koszt całkowity

Brak danych

Wkład UE

€ 195 914,88

Koordynowany przez

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France

Periodic Reporting for period 1 - EPHHG (High-order harmonic generation triggered by elliptically polarized laser pulses)

Okres sprawozdawczy: 2024-06-01 do 2026-05-31

Podsumowanie kontekstu i ogólnych celów projektu

High-order harmonic generation (HHG) is a highly nonlinear phenomenon arising from the propagation of a laser pulse throughout a medium. HHG is used to generate tabletop sources of attosecond light pulses, essential for probing ultrafast phenomena in matter at the natural scales of the electrons. The shape of the generated light pulses can be changed by changing the intensity or the frequency of the incident light. However, these parameters cannot be continuously changed in experiments, in contrast to the ellipticity which is moreover simple to adjust and acts as a control knob. While polarization of the incident light is very promising for controlling the shape of the generated attosecond light pulses, up to date, HHG is limited to a narrow range of ellipticities only. The project EPHHG aims to control continuously the shape of generated attosecond light pulses from incident elliptically polarized lights in the full range of laser ellipticities. I propose a theoretical and numerical investigation adapted for this purpose. It includes the development of both theoretical models and sophisticated numerical methods in order to simulate and understand the self-consistent light-matter interactions occurring during light propagation.

Prace wykonane od początku projektu do końca okresu sprawozdawczego oraz najważniejsze dotychczasowe rezultaty

We have derived equations for the USFA (Unified Strong Field Approximation).
We have developped an optimized version of our code to solve the Time Dependant Schrödinger Equation for 2 degrees of freedom of any laser polarization.

Innowacyjność oraz oczekiwany potencjalny wpływ (w tym dotychczasowe znaczenie społeczno-gospodarcze i szersze implikacje społeczne projektu)

We did not havae time to exploit the equations and the code we have obtained during the period of the MCSA EPHHG project.