Bonn 2025 – scientific programme

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MO: Fachverband Molekülphysik

MO 9: Poster – Novel Approaches

MO 9.4: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Generation of broad-bandwidth deep ultraviolet pulses with achromatic second harmonic generation — •Nils-Oliver Schütz, Lukas Bruder, Ferdinand Bergmeier, and Ulrich Bangert — University of Freiburg, Institute of Physics, Hermann-Herder-Straße 3, 79104 Freiburg, Germany

The generation of deep ultraviolet optical pulses featuring broad spectral bandwidth and short pulse durations is a challenging task, especially when using high repetition rate (> 100kHz) laser systems that provide low pulse energies to drive the nonlinear conversion processes. We present a scheme based on second harmonic generation of the output of a non-collinear optical parametric amplifier. To increase the bandwidth and efficiency of the second harmonic generation we employ achromatic phase matching [1]. First results will be presented.

Keywords: Short UV pulses; Achromatic phase matching for SHG