SAMOP 2023 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 55: Precision Spectroscopy of Atoms and Ions III (joint session A/Q)

Q 55.5: Vortrag

Donnerstag, 9. März 2023, 15:45–16:00, F303

High-resolution spectroscopy of exotic silver with a cw OPO injection-seeded PDA — •Mitzi Urquiza-González¹, Volker Sonnenschein¹, Omorjit S. Khwairakpam², Bram van den Borne³, Michael Heines³, Ágota Koszorús³, Katerina Chrysalidis⁴, Ruben P. de Groote^3,5, Bruce Marsh⁴, Korbinian Hens¹, and Klaus Wendt⁶ for the CRIS collaboration — ¹Division HÜBNER Photonics, Hübner GmbH Co KG, Germany — ²Istituto Nazionale di Fisica Nucleare LNL, Italy — ³KU Leuven, Belgium — ⁴CERN, Switzerland — ⁵University of Jyväskylä, Finland — ⁶Johannes Gutenberg Universität, Germany

Short-lived radioisotopes are of special interest for nuclear structure studies, as their characteristic provide valuable reference points for theoretical predictions far from stability. By using lasers, hyperfine transitions can be accessed, allowing direct measurement of nuclear observables. For such high-resolution spectroscopy, narrow-band pulsed lasers can be created by the pulsed amplification of a cw seed laser, keeping the amplifier’s high power and short time profile whilst acquiring the seeder’s spectral properties.

Spectroscopy on exotic Ag was performed at the CRIS experiment at CERN. A tunable cw single-mode OPO was employed as injection-seed for a two-stage pulsed dye amplifier. The hyperfine splitting of the ground-state ²S_1/2 to the level ²P _3/2^O was measured and the hyperfine coupling constants were determined. For this work, ^111,117Ag are presented, showcasing this laser system’s applicability for future high-resolution spectroscopy studies.