Forthcoming Events

05.09.2022 - 09.09.2022, Iseolago hotel, Iseo, Italy.

News

MUST2022 Conference- a great success!
New scientific highlights- by MUST PIs Wörner, Chergui, and Richardson
FELs of Europe prize for Jeremy Rouxel- “Development or innovative use of advanced instrumentation in the field of FELs”
Ruth Signorell wins Doron prizefor pioneering contributions to the field of fundamental aerosol science
New FAST-Fellow Uwe Thumm at ETH- lectures on Topics in Femto- and Attosecond Science
International Day of Women and Girls in Science- SSPh asked female scientists about their experiences
New scientific highlight- by MUST PIs Milne, Standfuss and Schertler
EU XFEL Young Scientist Award for Camila Bacellar,beamline scientist and group leader of the Alvra endstation at SwissFEL
Prizes for Giulia Mancini and Rebeca Gomez CastilloICO/IUPAP Young Scientist Prize in Optics & Ernst Haber 2021
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List- for the development of asymmetric organocatalysis
NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules
#NCCRWomen- NCCR MUST celebrates 50 years women’s right to vote in Switzerland

Probing molecular dynamics using trajectories

ZAIR_A_qols_w_09
Date Mo, 02.04.2012 - Mo, 02.04.2012
Time 16:45h
Speaker Amelle Zaïr, Imperial College London
Location ETH Hönggerberg, HPF G6
Program Laser Seminar / NCCR MUST Laser Seminar

Probing molecular dynamics using trajectories control in high order harmonic generation

We investigate the possibility to access intra-molecular dynamics by resolving in the high order harmonic emission electron trajectories and observing. We examine the case of randomly aligned molecules (N2, CO2, O2, D2 and H2) where trajectories contributions are clearly discernable revealing the impact of cation nuclear dynamics taking place over a time interval of a few hundreds attoseconds to a few femtoseconds. Studying the case of aligned molecules first theoretically using Strong Field Approximation and Time Dependent Schodinger Equation, we quantify the cation electron dynamics into the trajectories interferences in the modelled spectra. As a result we demonstrate the dependence of trajectories interference pattern upon which ionisation channels contribute. An interesting case is identified where not only multiple channels signature are encoded in the interferences but also the signature of field induced coupling between channels. Molecular quantum path interferences is therefore shown to be a promising new route for attosecond spectroscopy to resolve ultra-fast charge migration in molecules after ionisation.

Host: Ursula Keller, ETHZ
Download special laser seminar Zair (62 KB)
(75 KB)
Link Opteth
NCCR MUST Office : ETHZ IQE/ULP-HPT H3 | Auguste-Piccard-Hof 1 | 8093 Zurich | E-Mail
The National Centres of Competence in Research (NCCR) are a research instrument of the Swiss National Science Foundation