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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

Single shot detection and noise analysis

Date Do, 02.05.2013 - Do, 02.05.2013
Time 10.15
Speaker Dr. Ariana Rondi, Institute of Applied Physics, University of Bern
Location Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern
Program Femtosecond pump-probe spectroscopy is a very powerful technique for the observation of ultrafast dynamical processes in molecules. In the last decades, the laser technology necessary for such experiments (femtosecond, broadband, high energy pulses) has become "off the shelf". While most pump-probe experiments aim at getting the best possible time resolution, a lot of efforts also go for obtaining the best signal to noise ratio (SNR), while maintaining a reasonable data accumulation time. Single-shot detection is a powerful approach for improving SNR, since it allows to correct for several important sources of noise, like intensity fluctuations of the laser, or mechanical instabilities of the experimental setup. We have developed a fast multichannel detection system for femtosecond pump-probe spectroscopy, capable of detecting single shot broadband spectra at the repetition rate of an amplified femtosecond laser system (kHz). I will present the measurements done to characterize the noise of our laser source. I will then describe our detection system, and the pump- probe experiments (transient absorption and broadband stimulated Raman spectroscopy) that we intend to conduct with this setup.
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Link www.iap.unibe.ch
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