A laser system for the spectroscopy of highly charged bismuth ions

Albrecht, Sebastian; Altenburg, Simon J.; Siegel, C.; Herschbach, N.; Birkl, G.

doi:10.1007/s00340-011-4732-8

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…As acousto-optic, electro-optic, or sideband modulation might not be sufficient to bridge the frequency gap to a known tellurium line directly, an offset lock to a second diode laser, which is stabilized to a tellurium line, can be used for laser frequency stabilization. Alternatively, a locking scheme based on a frequency-stabilized transfer cavity (see, e.g., [53]) can be implemented. By a controlled variation of the cavity length, a frequency tuning over the full mode-hop-free tuning range is accessible [54].…”

Section: Laser Microwaves and Detectionmentioning

confidence: 99%

Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

et al. 2013

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We present an experimental concept and setup for laser-microwave double-resonance spectroscopy of highly charged ions in a Penning trap. Such spectroscopy allows a highly precise measurement of the Zeeman splittings of fine-and hyperfine-structure levels due the magnetic field of the trap. We have performed detailed calculations of the Zeeman effect in the framework of quantum electrodynamics of bound states as present in such highly charged ions. We find that apart from the linear Zeeman effect, second-and third-order Zeeman effects also contribute to the splittings on a level of 10 −4 and 10 −8 , respectively, and hence are accessible to a determination within the achievable spectroscopic resolution of the ARTEMIS experiment currently in preparation.PACS numbers: 32.60.+i, 42.62.Fi, 78.70.Gq, 37.10.Ty (2) J and g (3) J

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Section: Laser Microwaves and Detectionmentioning

confidence: 99%

Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

et al. 2013

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“…Such sympathetic cooling is favourable when ions without suitable transitions for laser cooling are to be cooled significantly below ambient temperature, for example for precision optical spectroscopy. The presented method and results are valuable for precision spectroscopy of highly charged ions such as for example Ar 13+ and ions of higher charge states as foreseen in the SpecTrap experiment (47 ). Also, the methods described in this paper can be used to produce large and cold samples of heavy diatomic molecular cations such as Ni by means of sympathetic cooling.…”

Section: Resultsmentioning

confidence: 98%

Sympathetic cooling in two-species ion crystals in a Penning trap

Schmidt

Murböck

Andelkovic

et al. 2017

Journal of Modern Optics

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We have studied the formation and properties of two-species ion Coulomb crystals in the Penning trap of the SpecTrap experiment. These crystals have been formed by injection of admixture ions from an external source into a previously confined and laser-cooled cloud of magnesium ions. This kind of study, performed over a range of the admixture ions' charge-to-mass ratios, indicates the conditions for their sympathetic cooling and the formation of two-species ion crystals. This mechanism allows efficient cooling of the admixed species such as highly charged ions which do not feature suitable laser-cooling transitions, and thus make them accessible to high-resolution laser spectroscopy.

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“…For bridging frequency ranges of up to a few THz, an EOM inside a Fabry-Perot cavity can be used to produce a narrow band frequency comb [28]. As an alternative, a cavity can be used to transfer the stability of a reference laser to the spectroscopy laser [22,[29][30][31][32][33][34]. To achieve simultaneous resonance of both lasers with the transfer cavity, at least one of them must be tunable by one free spectral range (FSR).…”

Section: Introductionmentioning

confidence: 99%

A tunable low-drift laser stabilized to an atomic reference

et al. 2016

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We present a laser system with a linewidth and long-term frequency stability at the 50 kHz level. It is based on a Ti:Sapphire laser emitting radiation at 882 nm which is referenced to an atomic transition. For this, the length of an evacuated transfer cavity is stabilized to a reference laser at 780 nm locked to the 85 Rb D 2 -line via modulation transfer spectroscopy. Gapless frequency tuning of the spectroscopy laser is realized using the sideband locking technique to the transfer cavity. In this configuration, the linewidth of the spectroscopy laser is derived from the transfer cavity, while the long-term stability is derived from the atomic resonance. Using an optical frequency comb, the frequency stability and linewidth of both lasers are characterized by comparison against an active hydrogen maser frequency standard and an ultra-narrow linewidth laser, respectively. The laser system presented here will be used for spectroscopy of the 1s 2 2s 2 2p 2 P 1/2 − 2 P 3/2 transition in sympathetically cooled Ar 13+ ions at 441 nm after frequency doubling.

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A laser system for the spectroscopy of highly charged bismuth ions

Cited by 6 publications

References 19 publications

Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

Sympathetic cooling in two-species ion crystals in a Penning trap

A tunable low-drift laser stabilized to an atomic reference

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