High energy Yb:YAG active mirror laser system for transform limited pulses bridging the picosecond gap

Siebold, M.; Loeser, Markus; Röser, F.; Albach, Daniel; Bußmann, Michael; Eckhardt, Sebastian; Lasagni, Andrés Fabían; Sauerbrey, R.; Schramm, U.

doi:10.1002/lpor.201600063

Cited by 9 publications

(8 citation statements)

References 34 publications

(34 reference statements)

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“…The laser systems will be required for laser cooling of bunched relativistic ion beams, as it is being planned for the SIS100 synchrotron at FAIR 1 , 2 . For that purpose, continuous-wave (cw) and pulsed laser systems are developed by groups at the TU Darmstadt 3 and the HZDR/TU Dresden 4 , respectively. For the detection of forward-emitted XUV fluorescence photons that are created in the de-excitation of highly charged ions at relativistic velocities, a detector system adapted to the large Lorentz boost and Doppler shift of these photons was developed in Münster 5 .…”

Section: Introductionmentioning

confidence: 99%

Laser spectroscopy of the $$^2{\mathrm{S}}_{1/2}{-}^2{\mathrm{P}}_{{1}/2}$$, $$^2{\mathrm{P}}_{3/2}$$ transitions in stored and cooled relativistic C3+ ions

Winzen

Hannen

Bußmann

et al. 2021

Sci Rep

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The $$^2{\mathrm{S}}_{1/2}{-}^2{\mathrm{P}}_{{1}/2}$$ 2 S 1 / 2 - 2 P 1 / 2 and $$^2{\mathrm{S}}_{1/2}{-}^2{\mathrm{P}}_{{3}/2}$$ 2 S 1 / 2 - 2 P 3 / 2 transitions in Li-like carbon ions stored and cooled at a velocity of $$\beta \approx 0.47$$ β ≈ 0.47 in the experimental storage ring (ESR) at the GSI Helmholtz Centre in Darmstadt have been investigated in a laser spectroscopy experiment. Resonance wavelengths were obtained using a new continuous-wave UV laser system and a novel extreme UV (XUV) detection system to detect forward emitted fluorescence photons. The results obtained for the two transitions are compared to existing experimental and theoretical data. A discrepancy found in an earlier laser spectroscopy measurement at the ESR with results from plasma spectroscopy and interferometry has been resolved and agreement between experiment and theory is confirmed.

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Section: Introductionmentioning

confidence: 99%

Laser spectroscopy of the $$^2{\mathrm{S}}_{1/2}{-}^2{\mathrm{P}}_{{1}/2}$$, $$^2{\mathrm{P}}_{3/2}$$ transitions in stored and cooled relativistic C3+ ions

Winzen

Hannen

Bußmann

et al. 2021

Sci Rep

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“…The measurements were performed with a beam of 12 C 3+ -ions which were overlapped with an anti-collinear laser beam in one of the straight sections of the ESR to excite either the 2 S 1/2 − 2 P 1/2 or the 2 S 1/2 − 2 P 3/2 transition (see figure 1). For this purpose two laser systems were available: a pulsed laser system from HZDR/TU-Dresden 4 and a Figure 1. Schematic view of the ESR with an enlarged view of the optical detection region.…”

Section: Methodsmentioning

confidence: 99%

“…The laser systems will be required for laser cooling of bunched relativistic ion beams, as it is being planned for the SIS100 synchrotron at FAIR 1,2 . For that purpose, continuous-wave (cw) and pulsed laser systems have been developed by groups at the TU Darmstadt 3 and the HZDR / TU Dresden 4 , respectively. For the detection of forward-emitted XUV fluorescence photons that are created in the de-excitation of highly charged ions at relativistic velocities, a detector system adapted to the large Lorentz boost and Doppler shift of these photons has been developed in Münster 5 .…”

Section: Introductionmentioning

confidence: 99%

Laser spectroscopy of the 2S1/2 - 2P1/2, 2P3/2 transitions in stored and cooled relativistic C3+ ions

Winzen

Hannen

Bußmann

et al. 2020

Preprint

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The and 2S1/2 - 2P1/2 and 2S1/2 - 2P3/2 transitions in Li-like carbon ions stored and cooled at a velocity of β ≈ 0.47 in the Experimental Storage Ring (ESR) at the GSI Helmholtz Centre in Darmstadt have been investigated in a laser spectroscopy experiment. Resonance wavelengths have been obtained using a new continuous-wave UV laser system and a novel extreme UV (XUV) detection system used to detect forward emitted fluorescence photons. The results obtained for the two transitions are compared to existing experimental and theoretical data. A discrepancy found in an earlier laser spectroscopy measurement at the ESR with results from plasma spectroscopy and interferometry could be resolved and agreement between experiment and theory is confirmed. Nonetheless, the experimental uncertainty is still smaller than that of state-of-the art theory.

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“…The second option is to use a pulsed laser system [16,17]. Short laser pulses have, according to ∆f · ∆t ≥ 0.5, a correspondingly broad spectral width.…”

Section: Pulsed Lasermentioning

confidence: 99%

Cooling rates and intensity limitations for laser-cooled ions at relativistic energies

Eidam

Winters

2018

Nuclear Instruments and Methods in Physics Research Section A:

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The ability of laser cooling for relativistic ion beams is investigated. For this purpose, the excitation of relativistic ions with a continuous wave and a pulsed laser is analyzed, utilizing the optical Bloch equations. The laser cooling force is derived in detail and its scaling with the relativistic factor γ is discussed. The cooling processes with a continuous wave and a pulsed laser system are investigated. Optimized cooling scenarios and times are obtained in order to determine the required properties of the laser and the ion beam for the planed experiments. The impact of beam intensity effects, like intrabeam scattering and space charge are analyzed. Predictions from simplified models are compared to particle-in-cell simulations and are found to be in good agreement. Finally two realistic example cases of Carbon ions in the ESR and relativistic Titanium ions in SIS100 are compared in order to discuss prospects for future laser cooling experiments.

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High energy Yb:YAG active mirror laser system for transform limited pulses bridging the picosecond gap

Cited by 9 publications

References 34 publications

Laser spectroscopy of the $$^2{\mathrm{S}}_{1/2}{-}^2{\mathrm{P}}_{{1}/2}$$, $$^2{\mathrm{P}}_{3/2}$$ transitions in stored and cooled relativistic C3+ ions

Laser spectroscopy of the $$^2{\mathrm{S}}_{1/2}{-}^2{\mathrm{P}}_{{1}/2}$$, $$^2{\mathrm{P}}_{3/2}$$ transitions in stored and cooled relativistic C3+ ions

Laser spectroscopy of the 2S1/2 - 2P1/2, 2P3/2 transitions in stored and cooled relativistic C3+ ions

Cooling rates and intensity limitations for laser-cooled ions at relativistic energies

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