Photoassociation and coherent transient dynamics in the interaction of ultracold rubidium atoms with shaped femtosecond pulses. II. Theory
| Autor: | Matthias Weidemüller, Judith Eng, Magnus Albert, Roland Wester, Wenzel Salzmann, Fabian Weise, Albrecht Lindinger, Ludger Wöste, Stefan M. Weber, Terry Mullins, Franziska Sauer, Simone Götz, Andrea Merli |
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| Rok vydání: | 2009 |
| Předmět: |
Chemical Physics (physics.chem-ph)
Condensed Matter::Quantum Gases Physics Atomic Physics (physics.atom-ph) FOS: Physical sciences Physics::Optics Resonance chemistry.chemical_element Photoionization Laser Atomic and Molecular Physics and Optics Physics - Atomic Physics law.invention Rubidium Pulse (physics) chemistry law Physics - Chemical Physics Excited state Femtosecond Physics::Atomic and Molecular Clusters Chirp Physics::Atomic Physics Atomic physics |
| Zdroj: | Physical Review A. 80 |
| ISSN: | 1094-1622 1050-2947 |
| DOI: | 10.1103/physreva.80.063417 |
| Popis: | Photoassociation of ultracold rubidium atoms with femtosecond laser pulses is studied theoretically. The spectrum of the pulses is cut off in order to suppress pulse amplitude at and close to the atomic resonance frequency. This leads to long tails of the laser pulse as a function of time giving rise to coherent transients in the photoassociation dynamics. They are studied as a function of cut-off position and chirp of the pulse. Molecule formation in the electronically excited state is attributed to off-resonant excitation in the strong-field regime. |
| Databáze: | OpenAIRE |
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