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

Carrier-envelope phase stabilization of mode-locked lasers: towards zeptosecond timing control

Date Mo, 08.10.2018 - Mo, 08.10.2018
Time 16:45
Speaker Prof. Dr. Günter Steinmeyer, Institute of Physics of the Humboldt-University Berlin and Max-Born-Institute, Max-Born-Institute for Nonlinear Optics and Short Pulse Spectroscopy, Berlin, Germany
Location ETH Hönggerberg, HPF G6
Program Abstract:
Once laser pulse durations approach the single-cycle regime, the commonly used slowly-varying envelope approximation collapses, and the relative phase between carrier and envelope starts to play a decisive role. Up to the late 90s, the carrier-envelope phase (CEP) was inaccessible to measurements, and the key idea for overcoming this dilemma, i.e., the f-to-2f interferometer was conceived in a collaboration between ETH and PTB Braunschweig. While sub-femtosecond timing accuracy between carrier and envelope was already demonstrated shortly afterwards, it took more than a decade to bring jitters down to <10 attoseconds. One decisive step forward was the feed-forward method; another promising new approach is the active f-to-2f interferometer, which was recently demonstrated with residual jitters of about 5 attoseconds. Finally, this lecture touches fundamental limitations imposed by amplified spontaneous emission, degradation of intrapulse coherence, as well as detection shot noise. Avenues towards overcoming these obstacles are pointed out, with the vision of synthesizing optical waveforms at similar ease and precision as in microwave electronics.
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