Projects per year
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 |
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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 | |
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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Dive into the research topics of 'Sub-Doppler two-photon-excitation Rydberg spectroscopy of atomic xenon: mass-selective studies of isotopic and hyperfine structure'. Together they form a unique fingerprint.Projects
- 1 Finished
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Using high-resolution lasers to test quantum electrodynamics
Orr, B., Baldwin, K., Warrington, R. & Eyler, E.
7/04/11 → 30/06/14
Project: Research