Sub-Doppler two-photon-excitation Rydberg spectroscopy of atomic xenon: mass-selective studies of isotopic and hyperfine structure

Mitsuhiko Kono; Yabai He; Kenneth G H Baldwin; Brian J. Orr

doi:10.1088/0953-4075/49/6/065002

Sub-Doppler two-photon-excitation Rydberg spectroscopy of atomic xenon

mass-selective studies of isotopic and hyperfine structure

Mitsuhiko Kono, Yabai He, Kenneth G H Baldwin, Brian J. Orr^*

^*Corresponding author for this work

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

Mass-selective sub-Doppler two-photon excitation (TPE) spectroscopy is employed to resolve isotopic contributions for transitions to high-energy Rydberg levels of xenon in an atomic beam, using narrowband pulses of coherent ultraviolet light at 205-213 nm generated by nonlinear-optical conversion processes. Previous research (Kono et al 2013 J. Phys. B: At. Mol. Opt. Phys. 46 35401), has determined isotope energy shifts and hyperfine structure for 33 high-energy Rydberg levels of gas-phase xenon and accessed Rydberg levels at TPE energies in the range of 94 100-97 300 cm^-1 with unprecedented spectroscopic resolution. The new isotopic-mass-resolved results were obtained by adding a pulsed free-jet atomic-beam source and a mass-selective time-of-flight detector to the apparatus in order to discern individual xenon isotopes and extract previously unresolved spectroscopic information. Resulting isotope energy shifts and hyperfine-coupling parameters are examined with regard to trends in principal quantum number n and in atomic angular-momentum quantum numbers, together with empirical and theoretical precedents for such trends.

Original language	English
Article number	065002
Pages (from-to)	1-15
Number of pages	15
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	49
Issue number	6
DOIs	https://doi.org/10.1088/0953-4075/49/6/065002
Publication status	Published - 28 Mar 2016

Keywords

hyperfine structure
isotope shifts
Rydberg states
high-resolution laser spectroscopy
mass spectrometry
nonlinear optics

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Using high-resolution lasers to test quantum electrodynamics

Orr, B., Baldwin, K., Warrington, R. & Eyler, E.

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Cite this

Kono, M., He, Y., Baldwin, K. G. H., & Orr, B. J. (2016). Sub-Doppler two-photon-excitation Rydberg spectroscopy of atomic xenon: mass-selective studies of isotopic and hyperfine structure. Journal of Physics B: Atomic, Molecular and Optical Physics, 49(6), 1-15. [065002]. https://doi.org/10.1088/0953-4075/49/6/065002

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abstract = "Mass-selective sub-Doppler two-photon excitation (TPE) spectroscopy is employed to resolve isotopic contributions for transitions to high-energy Rydberg levels of xenon in an atomic beam, using narrowband pulses of coherent ultraviolet light at 205-213 nm generated by nonlinear-optical conversion processes. Previous research (Kono et al 2013 J. Phys. B: At. Mol. Opt. Phys. 46 35401), has determined isotope energy shifts and hyperfine structure for 33 high-energy Rydberg levels of gas-phase xenon and accessed Rydberg levels at TPE energies in the range of 94 100-97 300 cm-1 with unprecedented spectroscopic resolution. The new isotopic-mass-resolved results were obtained by adding a pulsed free-jet atomic-beam source and a mass-selective time-of-flight detector to the apparatus in order to discern individual xenon isotopes and extract previously unresolved spectroscopic information. Resulting isotope energy shifts and hyperfine-coupling parameters are examined with regard to trends in principal quantum number n and in atomic angular-momentum quantum numbers, together with empirical and theoretical precedents for such trends.",

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