Microwave spectroscopy of high-Lhelium Rydberg states: 10H-10I, 10I-10K, and 10K-10Lintervals

1 November 1988

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 38 (9) , 4574-4584
https://doi.org/10.1103/physreva.38.4574

Abstract

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.

Keywords

This publication has 18 references indexed in Scilit:

Measurement of the magnetic fine structure of the 10Gand 10Hstates of helium
Physical Review A, 1987
Rydberg states of helium: Relativistic and second-order corrections
Physical Review A, 1985
Retarded Long-Range Interaction in He Rydberg States
Physical Review Letters, 1984
Measurement of High-Angular-Momentum Fine Structure in Helium: An Experimental Test of Long-Range Electromagnetic Forces
Physical Review Letters, 1984
Fine structure of Rydberg states. V.n=5and6FandGstates ofHe4
Physical Review A, 1982
Atomic-beam measurements of helium $F - G$ , $F - H$ , and $F - I$ intervals
Physical Review A, 1981
Fine structure of Rydberg states. IV. Completely resolved fine structure in $D$ , $F$ , and $G$ states of ${}^{4}{He}$
Physical Review A, 1979
Retardation effects on high Rydberg states: A retarded $R^{- 5}$ polarization potential
Physical Review A, 1978
Measurement of intervals between1,3D and high-L states of He for n=7 to 10 by electric-field-induced anticrossings
Journal of Physics B: Atomic and Molecular Physics, 1978
The Influence of Retardation on the London-van der Waals Forces
Physical Review B, 1948