Erlangen 2018 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 62: Poster: Quantum Optics and Photonics V

Q 62.82: Poster

Thursday, March 8, 2018, 16:15–18:15, Redoutensaal

SHG in periodically poled crystals for cooling of relativistic ion beams — •Janika Schwalbach, Daniel Kiefer, and Thomas Walther — Technische Universität Darmstadt, Institut für Angewandte Physik, Laser und Quantenoptik, Schlossgartenstr. 7, 64289, Darmstadt

Fast tunable cw laser systems have many applications. Among others such as laser spectroscopy, cooling of relativistic ion beams is an application of interest [1]. The method is usually employed in addition to electron- and stochastic cooling and uses a laser beam instead to reduce the phase space density of an ion beam circulating in a storage ring. Such a fast tunable cw laser system has been developed and tested successfully cooling C³⁺-ions [2]. Since then the 257-nm-laser system was further improved. Focus was the LBO based SHG build-up cavity. It is replaced by a single periodically poled crystal based on MgO:PPLN or MgO:PPSLT. Latest results and further aspects will be presented.

[1] U. Schramm, D. Habs. Crystalline ion beams. Progress in Particle and Nuclear Physics 53 (2004), 583-677. [2] T. Beck. Lasersystem zur Kühlung relativistischer C³⁺-Ionenstrahlen in Speicherringen. Dissertation. Technische Universität Darmstadt (2015).