Role of spontaneously generated coherence (SGC) in laser cooling of atoms
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916378387152896 |
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| author | Das, Rajnandan Choudhury Khan, Samir R, Thilagaraj Pandey, Kanhaiya |
| author_facet | Das, Rajnandan Choudhury Khan, Samir R, Thilagaraj Pandey, Kanhaiya |
| contents | The well-known sub-Doppler polarization gradient cooling in type-I transition ($F_e=F_g+1$) is caused by red-detuned lasers. On the other hand, in type-II transition ($F_e\le F_g$), sub-Doppler cooling takes place through blue-detuned lasers. This opposite behavior for the two types of transitions is due to SGC. In the absence of SGC, both types of transitions show blue-detuned cooling. In this work, we experimentally and theoretically demonstrate blue-detuned cooling for both types of transitions in $^{\textrm{87}}$Rb. For completeness, we compare the temperatures in various configurations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_04234 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Role of spontaneously generated coherence (SGC) in laser cooling of atoms Das, Rajnandan Choudhury Khan, Samir R, Thilagaraj Pandey, Kanhaiya Atomic Physics The well-known sub-Doppler polarization gradient cooling in type-I transition ($F_e=F_g+1$) is caused by red-detuned lasers. On the other hand, in type-II transition ($F_e\le F_g$), sub-Doppler cooling takes place through blue-detuned lasers. This opposite behavior for the two types of transitions is due to SGC. In the absence of SGC, both types of transitions show blue-detuned cooling. In this work, we experimentally and theoretically demonstrate blue-detuned cooling for both types of transitions in $^{\textrm{87}}$Rb. For completeness, we compare the temperatures in various configurations. |
| title | Role of spontaneously generated coherence (SGC) in laser cooling of atoms |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2402.04234 |