Radiation pressure force on cold rubidium atoms due to excitation to a non-cooling hyperfine level
| Autor: | Neven Šantić, Damir Aumiler, Gordana Kregar, Ticijana Ban |
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| Rok vydání: | 2014 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics education.field_of_study Population chemistry.chemical_element Measure (mathematics) Atomic and Molecular Physics and Optics cold atoms radiation pressure force Optical Bloch Equations Rubidium chemistry Excited state Radiative transfer Physics::Atomic Physics Laser detuning Atomic physics education Hyperfine structure Excitation |
| Zdroj: | The European Physical Journal D. 68 |
| ISSN: | 1434-6079 1434-6060 |
| DOI: | 10.1140/epjd/e2014-50312-3 |
| Popis: | We study the radiation pressure force exerted on cold 87Rb atoms captured in a magneto-optical trap (MOT) due to resonant excitation of atoms into the non-cooling 5P1 / 2(F e = 2) hyperfine level. We measure the fractional excited population for different MOT parameters such as cooling laser detuning and power, and empirically test the applicability of the Optical Bloch Equations for describing cold atoms in the MOT. We use the effective saturation intensity parameter which enables simple calculation of the fractional excited state population in a multi-level system using a two-level model, and apply it for the radiative force modeling. This approach provides a valuable tool for optical manipulation experiments. |
| Databáze: | OpenAIRE |
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