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Excitation Studies In The Rare Gases And Simple Molecules Using A High Resolution Electron Spectrometer., Henricus W. Dassen
Excitation Studies In The Rare Gases And Simple Molecules Using A High Resolution Electron Spectrometer., Henricus W. Dassen
Electronic Theses and Dissertations
A high resolution electron spectrometer has been used to perform electron scattering studies with both atomic and molecular targets. Work has been done on negative ion resonance production in the rare gases and on polarization correlation measurements in diatomic molecules. High resolution metastable excitation function measurements have been made in the doubly excited state region for Ne, Ar and Kr targets. Comparison of the spectra obtained suggests that the gross features are due to negative ion resonances. Previous techniques which have proved successful in the identification and classification of resonances in the rare gases at energies below the first ionization …
Time-Resolved Laser Spectroscopy Of Mercury Molecules., Ronald J. Niefer
Time-Resolved Laser Spectroscopy Of Mercury Molecules., Ronald J. Niefer
Electronic Theses and Dissertations
Highly excited (Rydberg) states in Hg(,2) molecules were populated by two successive laser pulses, a 'pump' and a 'probe' pulse, with several (mu)s delay between them. The time-evolution of the band fluorescence emitted in the radiative decay of these states was analyzed with a transient digitizer and a spectrometer, yielding the average fluorescent decay times for the bands at 259 nm, 261.2 nm, 271.8 nm, 330 nm, 420 nm, 451.4 nm, 509.7 nm, and 632.6 nm, as well as the average lifetimes of the 6('1)D(,2) and 6('3)D(,2) atomic states which agree well with other recent determinations. Cross sections for the …