Laser and microwave spectroscopy of even-parity Rydberg states of neutral ytterbium and multichannel-quantum-defect-theory analysis
Journal Article
·
· Physical Review A
- Univ. Paris-Saclay, Orsay (France); DOE/OSTI
- Univ. Paris-Saclay, Orsay (France)
- Univ. of Virginia, Charlottesville, VA (United States)
Measurements of high-lying even-parity 6sns1S0 and 6snd1,3D2 levels of neutral 174Yb are presented in this paper. Spectroscopy is performed with a two-step laser excitation from the ground state 4f146s21S0, and the Rydberg levels are detected by using the field ionization method. Additional two-photon microwave spectroscopy is used to improve the relative energy accuracy where possible. The spectroscopic measurements are complemented by a multichannel-quantum-defect-theory (MQDT) analysis for the J = 0 and the two-coupled J = 2 even-parity series. Here, we compare our results with the previous analysis of Aymar, Débarre, and Robaux and analyze the observed differences. From the MQDT models, a revised value for the first ionization limit I6s = 50443.07041 (25) cm–1 is proposed for 174Yb.
- Research Organization:
- Univ. of Virginia, Charlottesville, VA (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- FG02-97ER14786
- OSTI ID:
- 1610331
- Alternate ID(s):
- OSTI ID: 1484825
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 98; ISSN PLRAAN; ISSN 2469-9926
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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