Dynamics of dissociation versus ionization in strong laser fields [electronic resource]
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| Online Access: |
Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1993.
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| Subjects: |
| Abstract: | In this paper, experimental results are presented which clearly demonstrate the effectiveness that an external field has in altering the dissociation dynamics. The experiment examines the strong-field dissociation dynamics of molecular hydrogen ions and its deuterated isotopes. These studies involve multiphoton excitation in the intensity regime of 10¹¹⁻¹⁴ W/cm² with the fundamental and second harmonic of a ND:YAG or ND:YLF laser system. Measurements include energy resolved electron and mass spectroscopy which provide useful probes in elucidating the interaction dynamics predicted by existing models. The example this in this paper, examines the strong-field dissociation of H₂⁺, HD⁺, and D₂⁺ at green (0.5 μm) and (1μm) frequencies. The diatomic ions are formed via multiphonon ionization of the neutral precursor which is physically separable from the dissociation process. This study provides the first observation of the dynamics associated with the above threshold dissociation (ATD) process and analogies will be made with the more familiar above threshold ionization (ATI) phenomenon. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 03/01/1993. "bnl--48611" " conf-930184--2" "DE93009261" 3. SILAP conference,Hansui (Belgium),8-14 Jan 1993. DiMauro, L.F.; Yang, B. |
| Physical Description: | 10 p. : digital, PDF file. |