Two‐color multiphoton transitions in molecular beam electric resonance studies: Rotating wave versus Floquet, and on‐ versus off‐resonance, calculations
| Autor: | William J. Meath, A.E. Kondo |
|---|---|
| Rok vydání: | 1996 |
| Předmět: | |
| Zdroj: | The Journal of Chemical Physics. 104:8312-8320 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.471583 |
| Popis: | A nonzero difference, d, between the diagonal dipole moment matrix elements, μjj, of two molecular states involved in either one‐ or two‐color multiphoton transitions, can have substantial impact on the temporal evolution and spectral behavior of the states. The effects of d≠0 are investigated in this paper for two‐color transitions in a two‐level system previously studied in one‐color molecular beam electric resonance (MBER) experiments on symmetric top molecules. The calculations suggest a two‐color analog to the one‐field experiments, where the flexibility furnished by the field parameters of the two continuous wave electric fields, including relative phase, can be used to advantage. Both exact Floquet calculations and the rotating wave approximation (RWA) are used in this study. Analytic RWA expressions for the one‐ and two‐color molecule‐laser(s) couplings are particularly useful in helping to interpret and/or predict the effects of d≠0. The novel aspects of two‐color laser‐molecule interactions, rel... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|