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

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.

Citation Download Citation

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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