Freiburg 2024 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 22: Poster: Molecules in Strong Fields

MO 22.7: Poster

Donnerstag, 14. März 2024, 17:00–19:00, Tent C

Studies on the construction of a neon recycling system for High Harmonic Generation — •Ron Ducke, Maximilian Pollanka, Maximilian Forster, and Reinhard Kienberger — Chair for Laser and X-Ray Physics E11, Technical University Munich, Germany

The poster deals with a current project in which a neon recycling system is being implemented in our attosecond laboratory. In that, high harmonics, which are high-energy ultrashort light pulses, are generated in a vacuum chamber. For this purpose, neon gas is fed into this chamber and a pulsed near-infrared laser is focused on it. This produces the aforementioned high harmonics. By superimposing these pulses with the near-infrared laser pulse, physical effects can be measured in the attosecond range. This measurement technique is known as "attosecond streaking". The consumption of the required neon gas is one of the main costs of operating the laboratory (ca. 40.000 € in 2022). Previously, the gas was released into the exhaust air after passing through the chamber. The current attempt is to implement a recirculation of the neon gas. My efforts are aimed at reducing neon consumption and making the laboratory more sustainable on the one hand, but also massively reducing the costs of running the laboratory on the other. The first step is to collect the gas from the chamber and analyze its composition. The required set-up includes three pumps, a gas sampling bag and a measuring chamber with a mass spectrometer.

Keywords: Attosecond Physics; High Harmonic Generation; Neon Recycling System