On the dynamics of pulsed and continuous wave laser-molecule interactions and the effects of permanent dipoles
| Autor: | A.E. Kondo, William J. Meath |
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| Rok vydání: | 1991 |
| Předmět: | |
| Zdroj: | Molecular Physics. 74:113-129 |
| ISSN: | 1362-3028 0026-8976 |
| DOI: | 10.1080/00268979100102101 |
| Popis: | The interaction is studied of a Gaussian pulsed or a continuous wave (CW) electric field with a molecule that has a nonzero difference d between the permanent dipoles of the ground and excited states involved in a transition. The unusual spectral effects associated with the transition with d ≠ 0, relative to the often studied case with d = 0, have been investigated previously in the two-level approximation and for continuous wave lasers. The observation of these effects, including markedly increased periods of excited state populations and negative Bloch-Siegart shifts, will often require the intense fields associated with pulsed rather than purely continuous wave electric fields. Transitions induced by continuous wave and pulsed laser-‘permanent dipole molecule’ interactions, for high field intensities and varying pulse durations, are investigated with model calculations carried out using exact Floquet and symmetry-adapted Riemann product integral methods. These calculations illustrate how the increased ... |
| Databáze: | OpenAIRE |
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