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Microwave spectroscopy of high-L helium Rydberg states: 10H-10I, 10I-10K, and 10K-10L intervals

Journal Article · · Phys. Rev. A; (United States)
Fine-structure intervals separating the 10H(L = 5), 10I(L = 6), 10K(L = 7), and 10L(L = 8) states of helium have been measured precisely, using a fast-beam microwave--laser resonance technique. The results: 10H-10I, 157.0508(26) MHz; 10I-10K, 60.8152(18) MHz; and 10K-10L, 27.1835(63) MHz agree well with theoretical predictions which include contributions due to ''retardation'' or ''Casimir'' forces.
Research Organization:
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556
OSTI ID:
6739506
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 38:9; ISSN PLRAA
Country of Publication:
United States
Language:
English

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