0372-400Х (Edition in Ukrainian)
2071-0186 (Edition in English)
2071-0194 (in electronic form)
Abbreviated key title: Ukr. J. Phys.
Institute of Electron Physics, Nat. Acad. of Sci. of Ukraine
(21, Universytets’ka Str., Uzhgorod 88017, Ukraine; e-mail: email@example.com)
Autoionizing Resonances in Three-Photon Ionization Spectrum of the Ytterbium Atom
Section: Atoms and molecules
Original Author's Text: Ukrainian
Abstract: The three-photon ionization spectrum of ytterbium atoms in the interval 16814.4 – 18100.0 cm-1 has been studied. In addition to the resonance maxima related to the one- and two-photon excitations of bound states, the maxima originated from the three-photon excitation of autoionizing states are observed. Two new odd autoionizing levels with energies of 51866.1 and 51914.1 cm-1 are discovered.
Key words: ytterbium, three-photon ionization, autoionizing level.