SAMOP 2021 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 3: Photonics and Laser Development
Q 3.4: Poster
Monday, September 20, 2021, 16:30–18:30, P
Transportable Laser System Employing Fourier Limited Picosecond Pulses for Laser Cooling of Relativistic Ion Beams — •Benedikt Langfeld1, Daniel Kiefer1, Sebastian Klammes1,2, and Thomas Walther1 — 1TU Darmstadt — 2GSI Darmstadt
Laser cooling of relativistic ion beams has been shown to be a sophisticated technology [1]. To prevent intrabeam scattering (IBS) of the ion beam, the use of white-light cooling with broad laser bandwidths has been proposed and demonstrated in non-relativistic ion beam cooling [2]. Laser cooling of relativistic C3+ ion beams was demonstrated with the presented pulsed laser system this year at GSI (see poster by S. Klammes et al).
In this work we present the transportable master-oscillator-power-amplifier system supplying laser pulses of 70 to 740 ps length with a scannable centre wavelength of 1029 nm, using a combination of acousto-optic and electro-optic modulators. The system generates Fourier transform limited pulses with a continuously adjustable pulse length and repetition rate of 1 to 10 MHz. With two SHG stages, the desired wavelength of 257.25 nm can be achieved.
[1] S. Schröder et al, Phys. Rev. Lett. 64, 2901-2904, (1990).
[2] S.N.Atutov et al, Phys. Rev. Lett. 80, 2129, (1998).