SKM 2021 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 16: Semiconductors: Optical, Transport and Ultrafast Properties

HL 16.6: Talk

Thursday, September 30, 2021, 12:30–12:45, H1

Extreme ultraviolet laser source for time resolved experiments including a terahertz driver laser — Torsten Golz, Gregor Indorf, Mihail Petev, Jan-Heye Buss, Michael Schulz, and •Robert Riedel — Class 5 Photonics GmbH, Luruper Hauptstraße 1, 22547 Hamburg

The investigation of ultrafast dynamics in condensed matter and interfaces requires high repetition rates and multiple wavelength laser sources, together with femtosecond resolution. To meet these needs, we have therefore designed an extreme-ultraviolet laser source with output within the range of 21.7 to 50 eV (total flux of 3×10¹² photons/sec), together with a tunable output from 750 - 950 nm with 10 µ J pulse energy and a pulse duration of <40 fs, as well as, a third output for terahertz generation (2 mJ, <600 fs at 1030 nm). All three outputs are optically synchronized and can be used, for example, in time- and angle-resolved photoemission spectroscopy (trARPES) experiments.