ZEKE PFI spectroscopy of naphthalene vapors via S2 electronic state

M. E. Akopyan; Valery S. Ivanov; V. I. Kleimenov; A. G. Feofilov

doi:10.1117/12.340002

5 February 1999 ZEKE PFI spectroscopy of naphthalene vapors via S₂ electronic state

M. E. Akopyan, Valery S. Ivanov, V. I. Kleimenov, A. G. Feofilov

Proceedings Volume 3732, ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine; (1999) https://doi.org/10.1117/12.340002
Event: ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, 1998, Moscow, Russian Federation

Abstract

A new group of electrons in the naphthalene ZEKE PFI spectrum has been observed in the energy range 70000 - 72000 cm^-1 by the one-color two-step laser excitation technique. It can be assigned to the field ionization of the high n Rydberg states converging to the first electron-excited ionic state of naphthalene. The lifetimes of the superexcited Rydberg states with the energy excess (above the first ionization energy) up to 1 eV are about 1 microsecond. The improved value of the second adiabatic ionization potential is 71823 plus or minus 30 cm^-1 (8.904 plus or minus 0.004 eV).

Citation Download Citation

M. E. Akopyan, Valery S. Ivanov, V. I. Kleimenov, and A. G. Feofilov "ZEKE PFI spectroscopy of naphthalene vapors via S₂ electronic state", Proc. SPIE 3732, ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, (5 February 1999); https://doi.org/10.1117/12.340002

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