Progress in zirconium resonance ionization spectroscopy

Ralph H. Page; Stephen C. Dropinski; Earl F. Worden; J. A. D. Stockdale

doi:10.1117/12.145509

28 May 1993 Progress in zirconium resonance ionization spectroscopy

Ralph H. Page, Stephen C. Dropinski, Earl F. Worden, J. A. D. Stockdale

Author Affiliations +

Proceedings Volume 1859, Laser Isotope Separation; (1993) https://doi.org/10.1117/12.145509
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

We have examined the stepwise-resonant three-photon-ionization spectrum of neutral Zirconium atoms using three separately-tunable pulsed visible dye lasers. The ground-level (first-step) transitions were chosen on the basis of demonstrated ⁹¹Zr selectivity. Lifetimes of even-parity levels around 36000 cm^-1, measured with the delayed- photoionization technique, range from 10 to 100 nsec. Direct ionization cross sections appear to be less than 10^-17 cm²; newly-detected autoionizing levels give peak ionization cross sections (inferred from saturation fluences) up to 10^-15 cm². Portions of Rydberg series converging to the 315 and 763 cm^-1 levels of Zr⁺ were identified. 'Clumps' of autoionizing levels are thought to be due to Rydberg-valence mixing.

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Ralph H. Page, Stephen C. Dropinski, Earl F. Worden, and J. A. D. Stockdale "Progress in zirconium resonance ionization spectroscopy", Proc. SPIE 1859, Laser Isotope Separation, (28 May 1993); https://doi.org/10.1117/12.145509

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