Loading of the narrow line Tm MOT from a pulsed cold atomic beam
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866915018302291968 |
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| author | Yaushev, M. Mishin, D. Tregubov, D. Kolachevsky, N. Golovizin, A. |
| author_facet | Yaushev, M. Mishin, D. Tregubov, D. Kolachevsky, N. Golovizin, A. |
| contents | We report on building a pulsed source of cold Tm atoms and loading of the narrow-line magnito-optical trap (MOT) from the cold atomic beam. We achieve the loading rate of the first-stage MOT in the primary chamber up to $10^8$ atoms/s and obtain a cold atomic beam with the mean longitudinal velocity $\sim10$ m/s and angular spread of 18 mrad in a pulsed mode. We also introduce a novel method to enhance the capture velocity of the narrow-line MOT by incorporating additional axial cooling beam, and achieve loading efficiency $η= 10\%$ of the second-stage MOT in the science chamber. Our approach could be extended to other atomic species with similar properties, like Sr, Yb, Dy and Er, serving as a convenient alternative for the traditional 2D-MOT schemes. Providing rapid loading of the MOT in the science chamber, it would reduce preparation time of the atomic ensemble leading to a shorter dead time in spectroscopy experiments and higher repetition rate. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_08807 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Loading of the narrow line Tm MOT from a pulsed cold atomic beam Yaushev, M. Mishin, D. Tregubov, D. Kolachevsky, N. Golovizin, A. Atomic Physics We report on building a pulsed source of cold Tm atoms and loading of the narrow-line magnito-optical trap (MOT) from the cold atomic beam. We achieve the loading rate of the first-stage MOT in the primary chamber up to $10^8$ atoms/s and obtain a cold atomic beam with the mean longitudinal velocity $\sim10$ m/s and angular spread of 18 mrad in a pulsed mode. We also introduce a novel method to enhance the capture velocity of the narrow-line MOT by incorporating additional axial cooling beam, and achieve loading efficiency $η= 10\%$ of the second-stage MOT in the science chamber. Our approach could be extended to other atomic species with similar properties, like Sr, Yb, Dy and Er, serving as a convenient alternative for the traditional 2D-MOT schemes. Providing rapid loading of the MOT in the science chamber, it would reduce preparation time of the atomic ensemble leading to a shorter dead time in spectroscopy experiments and higher repetition rate. |
| title | Loading of the narrow line Tm MOT from a pulsed cold atomic beam |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2411.08807 |