Enhanced Magnetic Trap Loading for Atomic Strontium
| Autor: | B. J. Reschovsky, Gretchen K. Campbell, Daniel S. Barker, Neal C. Pisenti |
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| Rok vydání: | 2015 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Strontium Atomic Physics (physics.atom-ph) chemistry.chemical_element FOS: Physical sciences Laser Atomic and Molecular Physics and Optics law.invention Physics - Atomic Physics Trap (computing) chemistry Ultracold atom law Quantum Gases (cond-mat.quant-gas) Laser cooling Magnetic trap Physics::Atomic and Molecular Clusters Laser detuning Atomic number Physics::Atomic Physics Atomic physics Condensed Matter - Quantum Gases |
| DOI: | 10.48550/arxiv.1508.05405 |
| Popis: | We report on a technique to improve the continuous loading of atomic strontium into a magnetic trap from a Magneto-Optical Trap (MOT). This is achieved by adding a depumping laser tuned to the 3P1 to 3S1 (688-nm) transition. The depumping laser increases atom number in the magnetic trap and subsequent cooling stages by up to 65 % for the bosonic isotopes and up to 30 % for the fermionic isotope of strontium. We optimize this trap loading strategy with respect to the 688-nm laser detuning, intensity, and beam size. To understand the results, we develop a one-dimensional rate equation model of the system, which is in good agreement with the data. We discuss the use of other transitions in strontium for accelerated trap loading and the application of the technique to other alkaline-earth-like atoms. Comment: 8 pages, 8 figures |
| Databáze: | OpenAIRE |
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