Forthcoming Events

05.09.2022 - 09.09.2022, Iseolago hotel, Iseo, Italy.


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

Tutorial: Retrieval of the ionization and return times from two-color high-harmonic generation

Date Mo, 18.11.2013 - Mo, 18.11.2013
Time 14.30 - 16.30
Speaker Manfred Lein, Institut für Theoretische Physik, Leibnitz Universität Hannover, Hannover, Germany
Location ETH Zurich, Hönggerberg Campus, HPF G-6
Program Tutorial

In the recent experiment by Shafir et al. [Nature 2012], high-harmonic generation was used to investigate the timing of electron release in laser-induced ionization of atoms. This scheme requires a two-color field with a weak second harmonic polarized orthogonal to the fundamental driving field. The two observables are the harmonic signal and the ratio of even to odd harmonics as a function of the two-color delay (the phase difference between the two orthogonally polarized fields). From these observables, the ionization and return times of the electron can be retrieved by assuming that the electron responds as a classical particle to the weak second harmonic field. I will first revisit the three-step model and the quantum-orbit model of high-harmonic generation, which are the standard models commonly used to find the ionization and return time. Then I explain the retrieval method in detail. I discuss the calibration of the two-color delay used in the analysis of the experiment and the validity of the classical equations.

Host: Ursula Keller, Ultrafast Laser Physics, IQE
Download (75 KB)
(75 KB)
Link Registration for the tutorial
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