SAMOP 2023 – scientific programme
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A: Fachverband Atomphysik
A 26: Precision Spectroscopy of Atoms and Ions III (joint session A/Q)
A 26.5: Talk
Thursday, March 9, 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 Groote3,5, 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 2S1/2 to the level 2P 3/2O 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.