Peculiarity of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation

V. V. Suran; I. I. Bondar

doi:10.1117/12.751803

19 July 2007 Peculiarity of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation

V. V. Suran, I. I. Bondar

Author Affiliations +

Proceedings Volume 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information; 67261B (2007) https://doi.org/10.1117/12.751803
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

Abstract

The process of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation of dye lasers is studied in the frequency range from 16 600 to 17 900 cm^-1. A large number of resonance maxima in the yield of Ba⁺ and Ba²⁺ ions were observed upon tuning the radiation frequency. It is unambiguously proved that most resonance maxima in the yield of Ba²⁺ ions are associated with the resonance transitions in the spectrum of Ba⁺ ions. This fact confirms the cascade mechanism of formation of Ba²⁺ ions in the frequency range of localization of these maxima. But the number of the resonant maxima in Ba²⁺ ions yield do not identified by transitions both in spectra of Ba atom and Ba⁺ ion. This fact indicates on realization of the noncascade mechanism of Ba²⁺ ions formation in the frequency range of these maxima.

Citation Download Citation

V. V. Suran and I. I. Bondar "Peculiarity of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation", Proc. SPIE 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information, 67261B (19 July 2007); https://doi.org/10.1117/12.751803

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