Ursula Keller wins “Swiss Nobel” Marcel Benoist Prize
Farewell: the NCCR MUST ended 
MUST2022 Conference
New scientific highlights
FELs of Europe prize for Jeremy Rouxel
Ruth Signorell wins Doron prize
New FAST-Fellow Uwe Thumm at ETH
International Day of Women and Girls in Science
New scientific highlight
EU XFEL Young Scientist Award for Camila Bacellar,
Prizes for Giulia Mancini and Rebeca Gomez Castillo
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List
Hans Jakob Wörner invited to give the „New Horizons Solvay Lectures” 
Unusual keynote talk at an international scientific conference
NCCR MUST at Scientifica 2021Comsol simulation of high field THz focusing
| Date | Do, 08.05.2014 | |
| Time | 10.15 | |
| Speaker | Yannik Waeber, Institute of Applied Physics, University of Bern | |
| Location | Universität Bern, Institut für Angewandte Physik, Gebäude exakte Wissenschaften, Hörsaal B116, Sidlerstrasse 5, 3012 Bern | |
| Program | To facilitate nonlinear THz experiments it is essential to reach the highest possible focused intensities, i.e. the smallest possible spot size. The THz pulses are single-cycle pulses, therefore, they cover a rather large spectral bandwidth (100μm - 3000μm). This has two important consequences. First, the dimensions of the optical elements are comparable in size to the THz wavelengths and, second, any achromatic element will have a negative effect. Through dedicated COMSOL simulations we investigate a number of important questions: 1) Is the paraxial approximation, e.g. Gaussian beams, still a useful description? 2) Can we assume an almost linear polarization in the focal plane? 3) What is the best focusing system given the different THz sources used in the lab? 4) Focusing versus imaging. 5) How careful do these systems have to be aligned? |
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| Link | www.iap.unibe.ch | |
