Three-dimensional laser cooling at the Doppler limit
| العنوان: | Three-dimensional laser cooling at the Doppler limit |
|---|---|
| المؤلفون: | R. Chang, Alain Aspect, Quentin Bouton, A. L. Hoendervanger, Y. Fang, T. Klafka, David Clément, Christoph I Westbrook, K. Audo |
| المساهمون: | Laboratoire Charles Fabry / Optique atomique, Laboratoire Charles Fabry (LCF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Jiangxi University of Science and Technology |
| المصدر: | Physical Review A Physical Review A, American Physical Society, 2014, 90 (6), pp.063407. ⟨10.1103/PhysRevA.90.063407⟩ |
| بيانات النشر: | arXiv, 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Resolved sideband cooling, [PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas], Atomic Physics (physics.atom-ph), chemistry.chemical_element, FOS: Physical sciences, 01 natural sciences, Physics - Atomic Physics, 010309 optics, symbols.namesake, Laser linewidth, Raman cooling, Laser cooling, 0103 physical sciences, Limit (music), Physics::Atomic and Molecular Clusters, Physics::Atomic Physics, 010306 general physics, Helium, Doppler cooling, Physics, [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph], Atomic and Molecular Physics, and Optics, chemistry, Quantum Gases (cond-mat.quant-gas), symbols, Atomic physics, Condensed Matter - Quantum Gases, Doppler effect, [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] |
| الوصف: | Many predictions of Doppler cooling theory of two-level atoms have never been verified in a three-dimensional geometry, including the celebrated minimum achievable temperature $\hbar \Gamma/2 k_B$, where $\Gamma$ is the transition linewidth. Here, we show that, despite their degenerate level structure, we can use Helium-4 atoms to achieve a situation in which these predictions can be verified. We make measurements of atomic temperatures, magneto-optical trap sizes, and the sensitivity of optical molasses to a power imbalance in the laser beams, finding excellent agreement with the Doppler theory. We show that the special properties of Helium, particularly its small mass and narrow transition linewidth, prevent effective sub-Doppler cooling with red-detuned optical molasses. Comment: 8 pages, 5 figures |
| تدمد: | 1050-2947 1094-1622 |
| DOI: | 10.48550/arxiv.1409.2519 |
| DOI: | 10.1103/PhysRevA.90.063407⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3be281af83cce8e5ab434a6ad4cac0df |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....3be281af83cce8e5ab434a6ad4cac0df |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10502947 10941622 |
|---|---|
| DOI: | 10.48550/arxiv.1409.2519 |