Laser cooling of rotation and vibration by optical pumping
| Autor: | Isam Manai, Andrea Fioretti, Mehdi Hamamda, Daniel Comparat, Ridha Horchani, Maria Allegrini, H. Lignier, Pierre Pillet |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Atomic Physics (physics.atom-ph)
ultra-cold molecules Biophysics Degrees of freedom (statistics) FOS: Physical sciences 02 engineering and technology photo-association Rotation 01 natural sciences Physics - Atomic Physics Optical pumping Laser cooling 0103 physical sciences Physics::Atomic Physics vibrational and rotational cooling molecular spectroscopy optical pumping Physical and Theoretical Chemistry Physics::Chemical Physics 010306 general physics Molecular Biology Physics Rotational–vibrational spectroscopy 021001 nanoscience & nanotechnology Condensed Matter Physics Vibration Atomic physics 0210 nano-technology Ground state Excitation |
| Zdroj: | Molecular physics 111 (2013): 1844–1854. doi:10.1080/00268976.2013.813980 info:cnr-pdr/source/autori:Manai, I.; Horchani, R.; Hamamda, M.; Fioretti, A.; Allegrini, M.; Lignier, H.; Pillet, P.; Comparat, D./titolo:Laser cooling of rotation and vibration by optical pumping/doi:10.1080%2F00268976.2013.813980/rivista:Molecular physics (Print)/anno:2013/pagina_da:1844/pagina_a:1854/intervallo_pagine:1844–1854/volume:111 |
| DOI: | 10.1080/00268976.2013.813980 |
| Popis: | We have recently demonstrated that optical pumping methods combined with photoassociation of ultra-cold atoms can produce ultra-cold and dense samples of molecules in their absolute rovibronic ground state. More generally, both the external and internal degrees of freedom can be cooled by addressing selected rovibrational levels on demand. Here, we recall the basic concepts and main steps of our experiments, including the excitation schemes and detection techniques we use to achieve the rovibrational cooling of Cs2 molecules. In addition, we present the determination of formation pathways and a theoretical analysis explaining the experimental observations. These simulations improves the spectroscopic knowledge required to transfer molecules to any desired rovibrational level. 17 pages, 14 figures |
| Databáze: | OpenAIRE |
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