Abstract

A new technique to study the Rydberg states of the barium atom has been developed. In this technique a multiphoton ionization signal is detected by selective excitation of the ground-state ion (6s) to an excited state (6p), which results in a collimated amplified spontaneous emission signal at the 6p → 5d transition of Ba⁺. Discrete Rydberg states, 6snl (l = 0, 2), as well as autoionizing Rydberg states, 5dnl (l = 0, 2) and 6pnl (l = 0, 2) are observed by this novel but simple method.

© 1988 Optical Society of America

Study of La⁺ Rydberg and autoionization states: ionization potential of La_II

X. P. Xie, C. B. Xu, W. Sun, P. Xue, Z. P. Zhong, W. Huang, and X. Y. Xu
J. Opt. Soc. Am. B 16(3) 484-487 (1999)

Double-Rydberg spectroscopy of the barium atom

J. Boulmer, P. Camus, and P. Pillet
J. Opt. Soc. Am. B 4(5) 805-810 (1987)

Limitation of sequential laser excitation for double-Rydberg autoionizing states of barium and quantum-defect approach

J. Boulmer, P. Camus, J.-M. Lecomte, and P. Pillet
J. Opt. Soc. Am. B 5(10) 2199-2202 (1988)

Observation of autoionizing states of beryllium by resonance-ionization mass spectrometry

C. W. Clark, J. D. Fassett, T. B. Lucatorto, L. J. Moore, and W. W. Smith
J. Opt. Soc. Am. B 2(6) 891-896 (1985)

High-resolution Rydberg-state spectroscopy of stable alkaline-earth elements

R. Beigang
J. Opt. Soc. Am. B 5(12) 2423-2436 (1988)