Freiburg 2024 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 6: Atomic Systems in External Fields I
A 6.5: Vortrag
Montag, 11. März 2024, 18:00–18:15, HS 1098
Dual-comb spectroscopy at high magnetic fields — •Razmik Aramyan1,2, Oleg Tretiak1,2, Sushree S. Sahoo1,2, Arne Wickenbrock1,2, and Dmitry Budker1,2,3 — 1Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany — 2Helmholtz-Institut Mainz, GSI Helmholtzzentrum für Schwerionenforschung, 55128 Mainz, Germany — 3Department of Physics, University of California, Berkeley, California 94720, USA
The invention of the frequency comb revolutionized metrology and became pivotal in various fields, including astronomy, optical communications, and more. Moreover, it found application in spectroscopy, serving as both a precise reference and the primary tool for sample interrogation. Dual-Comb Spectroscopy (DCS) further advanced this revolution, allowing rapid, high-resolution, and time-resolved analyses.
In various physics fields, atomic data play a pivotal role, especially in exploring 'new physics' beyond the standard model. They furnish essential information for understanding fundamental interactions and designing experiments to probe uncharted scientific fields. Our project aims to develop and use the DCS technique for broad-band spectroscopy of Rare-Earth Elements (REE) under a strong magnetic field (up to 100 T). The data will be used to train a neural network to predict atom-related information accurately. We will present the current state of DCS development and present initial results from our coherent data acquisition and analysis technique. Additionally, we will show the outcomes from various evaporation methods applied to REE, particularly in our first test case, samarium.
Keywords: Frequency comb; Spectroscopy; Rare-Earth Elements; High magnetic fields; Samarium