Dresden 2020 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 92: Poster Session - Ultrafast Electron Dynamics at Surface and Interfaces II
O 92.3: Poster
Mittwoch, 18. März 2020, 18:15–20:00, P2/1OG
Dual-channel laser system with gap-less tuning from 250 - 1300 nm at megahertz repetition rates for time-resolved photoelectron-emission microscopy and spectroscopy — •Michael Schulz1, Gregor Indorf1, Ivanka Grguras1, Jan-Heye Buss1, Torsten Golz1, Mark Prandolini1, 2, and Robert Riedel1 — 1Class 5 Photonics GmbH, Notkestrasse 85, 22607 Hamburg, Germany — 2Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
A dual-channel, high-power laser system with gap-less tuning from 250 - 1300 nm at 30 - 50 femtoseconds pulse duration is presented as the ideal tool for time-resolved photo-emission microscopy and spectroscopy experiments in order to study ultrafast condensed phase and interface dynamics. The system integrates an industrial Yb-doped femtosecond laser, two independently tunable optical-parametric amplifiers, second-harmonic generation and third-harmonic generation, and features repetition rates from 0.1 - 4 MHz with maximum average power of 3 W per channel.