Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 59: Lasers II
Q 59.3: Talk
Friday, March 15, 2024, 11:30–11:45, HS 1015
Spectroscopic isotope separation in hot rubidium vapor — •Timon Damböck1, Denis Uhland1, Gunnar Langfahl-Klabes1, Robert Löw2, and Ilja Gerhardt1 — 1Leibniz Universität Hannover, Appelstrasse 2, 30167 Hannover — 2Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart
Whether for medical applications, radiation protection or the utilization in physical metrology – having access to a pure or enriched amount of a single isotope can be a major advance. Natural abundant rubidium is composed of 85Rb and 87Rb. Since these isotopes differ in their nuclear spin, the hyperfine groundstates are spectrally well separated. Our experimental setup consists of two vapor cells which are interconnected by a capillary. Resonant high power lasers are used to exert a light induced drift on the individual rubidium isotopes [1]. Changes in isotope concentration in the cells are measured using absorption spectroscopy. This talk will discuss our progress to enrich and separate rubidium isotopes in hot atomic vapor using light induced drift.
[1] Okamoto, M. et al. Observation of Light-Induced Drift Effect of Rubidium by Using Two Diode Lasers for Pumping and Re-Pumping. Materials Transactions. 49, 11 (2008), pp. 2632-2635.
Keywords: absorption spectroscopy; isotope separation; light induced drift; alkali atoms; rubidium