Spectroscopic properties and laser cooling feasibility with the X12Π1/2 ? X22Π3/2 transition for the PbX (X = F, Cl, Br, and I) molecules
文献类型：期刊论文
| 作者 | Luan, Jing-Zhen2; Yang, Chuan-Lu2,3; Li, Xiaohu1,3 ; Liu, Wen-Wang2; Liu, Yu-Liang2; Zhao, Wen-Kai2
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| 刊名 | PHYSICA SCRIPTA
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 99期号:3页码:035406 |
| 关键词 | spin-orbit coupling relativistic Frank-Condon factor laser cooling KRCI |
| ISSN号 | 0031-8949 |
| DOI | 10.1088/1402-4896/ad23b3 |
| 产权排序 | 2 |
| 英文摘要 | The highly diagonal Frank-Condon factors (FCFs) are necessary for the laser cooling scheme, which means that only the molecules with the appropriate ground and excited electronic states can become candidates. Here, the laser cooling feasibility of the PbX (X = F, Cl, Br, and I) molecules is explored through four-component relativistic calculations. The potential energy curves and transition dipole moments of five Omega states are calculated and used to solve the Schr & ouml;dinger equation of nuclear motion to obtain the rovibrational energy levels, spectroscopic parameters, the Einstein coefficients, and FCFs. Using the X-1(2)Pi(1/2) <-> X-2(2)Pi(3/2) transition with highly diagonal FCFs, we construct optical schemes that can provide 10(4) similar to 10(5) scattering phonons with four pumping lasers for PbX. The Doppler/recoil temperatures of PbX are 419.05 / 57.55, 9.63 / 61.20, 4.95 / 49.98, and 0.71 / 40.17 nK, respectively. Since the 10(-4) s of the long spontaneous emission lifetime, the temperatures below microkelvin orders of magnitude can be achieved only if the adequate pre-cooling temperature is satisfied. |
| WOS关键词 | POTENTIAL-ENERGY CURVES ; ACTIVE SPACE CONCEPT ; LOW-LYING STATES ; AB-INITIO ; RELATIVISTIC TREATMENT ; ELECTRON CORRELATION ; CONSTANTS ; BAND ; EQUATION ; SPECTRUM |
| 资助项目 | National Neutral Science Foundation of China ; [12374232] ; [2023] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001158818100001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Neutral Science Foundation of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5791]  |
| 专题 | 天体化学研究团组 |
| 通讯作者 | Yang, Chuan-Lu |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China 2.Ludong Univ, Sch Phys & Optoelect Engn, Yantai 264025, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luan, Jing-Zhen,Yang, Chuan-Lu,Li, Xiaohu,et al. Spectroscopic properties and laser cooling feasibility with the X12Π1/2 ? X22Π3/2 transition for the PbX (X = F, Cl, Br, and I) molecules[J]. PHYSICA SCRIPTA,2024,99(3):035406. |
| APA | Luan, Jing-Zhen,Yang, Chuan-Lu,Li, Xiaohu,Liu, Wen-Wang,Liu, Yu-Liang,&Zhao, Wen-Kai.(2024).Spectroscopic properties and laser cooling feasibility with the X12Π1/2 ? X22Π3/2 transition for the PbX (X = F, Cl, Br, and I) molecules.PHYSICA SCRIPTA,99(3),035406. |
| MLA | Luan, Jing-Zhen,et al."Spectroscopic properties and laser cooling feasibility with the X12Π1/2 ? X22Π3/2 transition for the PbX (X = F, Cl, Br, and I) molecules".PHYSICA SCRIPTA 99.3(2024):035406. |
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