Towards a compact XUV frequency comb source
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Towards a compact XUV frequency comb source
Thu, 20/07/2023 - 11:00 to 12:00
Location:
Speaker:
Professor Oleg Pronin
Affiliation:
Helmut Schmidt University in Hamburg
Synopsis:
Is there any new physics out there? Of course, for example, what is dark matter, can we detect it, and how? One intriguing approach to detecting dark matter involves the development of precise and sensitive nuclear clocks.
I will report on setting up the light source for performing the spectroscopy of the Thorium isotope (229Th) transition, which plays a crucial role in nuclear clocks. The XUV light source is envisioned to be used for many other applications in fundamental spectroscopy. The XUV source is based on the world’s highest peak power oscillator delivering 200 W average power, 14 MHz repetition rate, and 110 MW peak power with 120 fs pulse duration. This output is being spectrally broadened and compressed in the cascaded multipass cells down to 10 fs and increasing peak power to nearly 1 GW. The XUV generation will be performed using high harmonic generation in a gas jet.
A key technology driving this project is pulse shortening in multipass cells, also known as free space quasi-waveguides. This new technology is exemplified by the startup company n2-Photonics, which has successfully brought sub-50-fs pulse duration to the market. Their main goal is to enable new applications. I wanted to show you this start-up to get you all fired up about creating your own start-up and bringing fresh technologies to the market.
Biography:
Oleg Pronin was born in Ertil, Russia, in 1985. He received a Diploma degree in solid-state physics from Moscow Engineering Physics Institute (Technical University) in 2008, and a Ph.D. degree in physics from the Ludwig Maximilian University of Munich, Germany, in 2012.
From 2012 to 2014, he was a Postdoctoral Scientist with the Ludwig Maximilian University of Munich. From 2014 to 2019, he has been a Group Leader at the Max Planck Institute of Quantum Optics, Garching, Germany. Since 2019 he is a full professor at Helmut Schmidt University in Hamburg, Germany. He has co-authored over 30 articles and holds several patents. He is a co-founder of two start-ups, Nordair Systems and n2-Photonics. His research interests include soliton mode-locking and instabilities, development of high-power femtosecond 1-μm and 2-μm thin-disk oscillators, ultra-broadband mid-infrared frequency combs, nonlinear spectral broadening in solids, carrier-envelope-phase stabilization and few-cycle pulse generation.
The complete publication list is available in his google scholar profile shorturl.at/ejDJW
To learn more about the ongoing research projects, please visit the group webpage https://www.hsu-hh.de/lts/