Deller, A;
Hogan, SD;
(2018)
Microwave spectroscopy of the 1snp P-3(J) fine structure of high Rydberg states in He-4.
Physical Review A
, 97
(1)
10.1103/PhysRevA.97.012505.
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Abstract
The 1snp 3 PJ fine structure of high Rydberg states in helium has been measured by microwave spectroscopy of single-photon transitions from 1sns 3 S1 levels in pulsed supersonic beams. For states with principal quantum numbers in the range from n = 34 to 36, the J = 0 → 2 and J = 1 → 2 fine structure intervals were both observed. For values of n between 45 and 51 only the larger J = 0 → 2 interval was resolved. The experimental results are in good agreement with theoretical predictions. Detailed characterization of residual uncanceled electric and magnetic fields in the experimental apparatus and calculations of the Stark and Zeeman structures of the Rydberg states in weak fields were used to quantify systematic contributions to the uncertainties in the measurements.
| Type: | Article |
|---|---|
| Title: | Microwave spectroscopy of the 1snp P-3(J) fine structure of high Rydberg states in He-4 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.97.012505 |
| Publisher version: | http://doi.org/10.1103/PhysRevA.97.012505 |
| Language: | English |
| Additional information: | © 2018 American Physical Society. This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Optics, Physics, Atomic, Molecular & Chemical, Physics, STRUCTURE INTERVALS, ATOMIC HELIUM, LAMB SHIFTS, IONIZATION, TRANSITION, ENERGIES, SERIES, VOLUME, LEVEL, BEAM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10043474 |
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