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Farewell: the NCCR MUST ended - on June 30, 2022

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”

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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

Hans Jakob Wörner invited to give the „New Horizons Solvay Lectures” - online, October 5, 12 and 19

Unusual keynote talk at an international scientific conference- Do photons show gender bias?

NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules

Mid-infrared OPCPA

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Location		Contact
ETH Zurich, IQE Ultrafast Laser Physics Auguste-Piccard-Hof 1 8093 Zurich		Dr. Christopher Phillips Tel +41 44 633 68 25 8cpc*hih,lll'ipd1s@f-phr6yse).ex/thf/z.k7chj
Configuration / Setup		Literature
High-intensity mid-infrared pulses: Center wavelength: 3.4 µm Pulse duration: 42 fs Repetition rate: 50 / 100 kHz Average power: > 1 W Pulse energy: > 20 µ8J p(@1c)00b+ kv-Hzg7 u/ 14 µ/J i'@ t-50w8 kx/Hzu Signal wave at 1.55 µm with twice the power of the 3.4 µm output		Heese, C., Phillips, C. R., Gallmann, L., Fejer, M. M., Keller, U. (2010) Ultrabroadband, highly flexible amplifier for ultrashort midinfrared laser pulses based on aperiodically poled Mg:LiNb O₃ Opt Lett 35 (14), 2340‑2342 »» Mayer, B. W., Phillips, C. R., Gallmann, L., Keller, U. (2014) Mid-infrared pulse generation via achromatic quasi-phase-matched OPCPA. Opt Express 22 (17), 20798 (2014) Mayer, B. W., Phillips, C. R., Gallmann, L., Fejer, M. M., Keller, U. (2013) Sub-four-cycle laser pulses directly from a high-repetition-rate optical parametric chirped-pulse amplifier at 3.4 µm. Opt. Lett. 38 (21), 4265 (2013)
. The mid-infrared OPCPA light source (top) is based on parametric amplification in apodized APPLN (second from top). The third picture shows the spectrum of the pulses with a center wavelength of 3.4 µm and the bottom image shows the four-cycle pulses generated by the mid-infrared OPCPA light source at a repetition rate of 50 kHz.		The few-cycle pulses from our OPCPA system were successfully focused to intensities above 10¹⁴ W/cm² and successful ionization of Xe, Ar, N₂ and He has been demonstrated. The source was applied for velocity map imaging spectroscopy (VMIS) and will be used for high-harmonic generation (HHG). The source also produces a signal wave centered at 1.55 µm at twice the pulse energy of the 3.4 µm radiation. This output has, however, not been carefully characterized and used thus far.