High resolution laser spectroscopy of atomic systems

Thompson, R. C.

doi:10.1088/0034-4885/48/4/003

Cited by 31 publications

(14 citation statements)

References 159 publications

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“…The development of coherent microwave (maser) and optical (laser) sources, high-intensity radiation with tunable, narrow spectral linewidth, has further enabled targeted absorption spectroscopy of atoms and molecules with high frequency resolution 95,96 . However, the application of broadband frequency spectroscopy is not universally straightforward.…”

Section: Amplitude Spectroscopymentioning

confidence: 99%

Large-amplitude driving of a superconducting artificial atom

Oliver

Valenzuela

2009

Quantum Inf Process

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Superconducting persistent-current qubits are quantum-coherent artificial atoms with multiple, tunable energy levels. In the presence of large-amplitude harmonic excitation, the qubit state can be driven through one or more of the constituent energy-level avoided crossings. The resulting LandauZener-Stückelberg (LZS) transitions mediate a rich array of quantum-coherent phenomena. We review here three experimental works based on LZS transitions: Mach-Zehnder-type interferometry between repeated LZS transitions, microwave-induced cooling, and amplitude spectroscopy. These experiments exhibit a remarkable agreement with theory, and are extensible to other solid-state and atomic qubit modalities. We anticipate they will find application to qubit state-preparation and control methods for quantum information science and technology.

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Section: Amplitude Spectroscopymentioning

confidence: 99%

Large-amplitude driving of a superconducting artificial atom

Oliver

Valenzuela

2009

Quantum Inf Process

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“…High resolution studies of hyperfine structures (HFSs) and optical isotope shifts (ISs) were facilitated by the development of laser saturated‐absorption spectroscopy techniques, which provided access to spectral line shapes that are free from Doppler broadening and, hence, reveal fine details of a system's atomic structure by means of the IS and HFS of its spectral lines1. Furthermore, the use of atomic vapor produced by sputtering in a hollow‐cathode discharge has permitted Doppler‐free laser techniques to be readily extended to a wide range of atomic systems, including refractory elements such as molybdenum2, 3; tungsten4; zirconium, yttrium, and tantalum5–8; and vanadium9, 10.…”

Section: Introductionmentioning

confidence: 99%

Investigations of hyperfine structure and isotope shift predictions in Hf II

Bouazza¹

2011

Int J of Quantum Chemistry

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ABSTRACT:The fine structure of the even-parity low configurations of singly ionized hafnium has been reanalyzed by simultaneous parameterization of the one-and two-body interactions for the model space (5d þ 6s) 3 . Using the calculated eigenfunctions, the magnetic-dipole A hyperfine constants for the whole 37 existing levels of the model space were predicted and compared partially with those obtained using relativistic configuration-interaction approach. Moreover, combined with experimental data, previously given in the literature, and pseudo-relativistic HartreeFock estimates, the field shifts (FSs) and specific mass shifts (SMSs) of numerous configurations are deduced: FS (5d 1 6s 2 ) ¼

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“…The renewed interest 3 -5 in nuclear structure investigations of this kind originates from the progress of experimental techniques, mainly due to the application of Iaser spectroscopic methods 6 which give enhanced resolution, improved accuracy and higher sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Charge radii and moments of tin nuclei by laser spectroscopy

Anselment¹,

Bekk²,

Hanser³

et al. 1986

Phys. Rev. C

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The isotope shift and hyperfine structure of the optical Sn resonance transition 5p 2 3 p 0 -+ 5p6s 3 P 1 at >..=286.3nm have been studied for 18 Sn nuclei including 2 isomers. Laser induced resonance fluorescence from a collimated atomic beam of tin was observed using a tunable cw dye Iaser .with frequency doubler. The electromagnetic nuclear moments and changes of the mean square charge radii of the nuclear charge distributions were determined. The results are discussed with respect to the information they provide on the nuclear structure of the nuclei investigated; they are compared with various theoretical models. DIE LASERSPEKTROSKOPISCHE BESTIMMUNG DER KERN-LADUNGS-RADIEN UND -MOMENTE VON ZINN-ATOMKERNEN I. I ntroductionThe energies of atomic transitions, in particular those associated with s electrons, alter slightly with the neutron number of the atomic nucleus. This isotope shift arises from the difference of the nuclear masses of the isotopes and from the difference of the nuclear Coulomb field experienced by the atomic electrons involved in the transition. The latter contribution, historically referred to as volume effect, 1 is due to isotopic differences of the nuclear charge distributions of which the mean square eh arge radius enters into the volume effect calculation.Effects of nuclear polarization associated with the interaction between atomic and nuclear states also give rise to isotope shifts, but this contribution is expected to be so small that it can be ignored for transitions of normal atoms. 2 In addition, the interaction of the nuclear magnetism and of nonspherical components of the nuclear charge distribution with the atomic electrons Iead to the weil known hyperfine splitting of atomic lines.Studies of these nuclear effects observed in atomic transitions are an important source of nuclear structure information, in particular about the systematics of nuclear charge radii and electromagnetic moments in long isotopic series. The renewed interest and may shed some light on pairing interactions. 13The present paper reports on Iaser spectroscopic measurements of the isotope shift and the hyperfine splitting in the 5p 2 3 P 0 -+ 5p6s 3 P 1 The experimental setup has been described elsewhere, 17we therefore restriet the description mainly to special features and alterations that were introduced for the tin experiments.The evaporation of the tin samples required temperatures of about 2100· K which are much higher than those used previously in the apparatus. This temperature is considerably higher than that one required for evaporation of bulk tin. The reason possibly is that the samples are so small that the tin atoms are spread over the crucible in low concentration which seems to bind them more strongly to its surface. Therefore a new heater of the electron bombardment type was developed. The anode is a vertically mounted tube made of high purity graphite. The crucibles are made of spectroscopically pure graphite so that practically no tin was detected with an empty crucible h...

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High resolution laser spectroscopy of atomic systems

Cited by 31 publications

References 159 publications

Large-amplitude driving of a superconducting artificial atom

Large-amplitude driving of a superconducting artificial atom

Investigations of hyperfine structure and isotope shift predictions in Hf II

Charge radii and moments of tin nuclei by laser spectroscopy

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