Laser Excitation of the 1S-2S Transition in Singly-Ionized Helium
| Autor: | Gründeman, Elmer L., Barbé, Vincent, de Velasco, Andrés Martínez, Roth, Charlaine, Collombon, Mathieu, Krauth, Julian J., Dreissen, Laura S., Taïeb, Richard, Eikema, Kjeld S. E. |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Precision laser spectroscopy in the extreme ultraviolet of the 1S-2S two-photon transition in singly-ionized helium is a promising route for tests of fundamental physics. We demonstrate laser excitation of this transition in an atomic beam of $^3$He, based on an amplified frequency comb pulse at 790 nm combined with its 25$^{\text{th}}$ harmonic at 32 nm. A clear resonance is observed with a maximum excitation probability of close to 10$^{-4}$ per pulse, and the results are well described by our simulations. This paves the way for high-precision Ramsey-comb spectroscopy of a single helium ion in a Paul trap. Comment: Main paper 6 pages with 4 figures, supplementary 4 pages with 5 figures |
| Databáze: | arXiv |
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