Abstract
We present an experimental study of the Ba 8snl double-Rydberg states, using two-photon core-electron excitation from selectively prepared high- 6snl Rydberg states ( and ). The 8snl resonances recorded in the vicinity of the two-photon ionic transition exhibit mixing with the neighboring double-Rydberg series. The increasing strength of this configuration mixing as decreases is due to the multipole terms of the Coulomb interaction expansion in the final excited state that results from polarization of the inner core electron by the presence of the outer nl electron. The interpretation of the complex 8snl structures is carried out through the parametrical multichannel quantum defect theory and a Lu–Fano plot analysis.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
Wim Vassen, Tony v.d. Veldt, Carel Westra, Erwin Bente, and Wim Hogervorst
J. Opt. Soc. Am. B 6(8) 1473-1480 (1989)
M. Aymar
J. Opt. Soc. Am. B 1(2) 239-245 (1984)
R. Beigang
J. Opt. Soc. Am. B 5(12) 2423-2436 (1988)