-
分子由于其不同于原子的特殊性质, 在原子、分子和光物理研究中有其独特的地位. 冷分子研究已经开展了二三十年, 取得了很多重大的进展. 但是以斯塔克减速器为代表的传统冷却方案遇到瓶颈, 很难进一步提高分子的相空间密度. 将原子中成熟的激光冷却技术拓展到极性分子中是本领域近年来的重大突破, 使得冷却和囚禁分子的范围得以大大扩展, 分子的相空间密度也得以提高. 本文对国内外激光冷却极性分子的最新成果进行综述, 并以BaF分子为例介绍激光冷却极性分子的相关理论和技术, 包括分子能级结构分析及精密光谱测量, 采用缓冲气体冷却进行态制备和预冷却, 以及通过冷分子束研究激光与BaF分子间的相互作用. 这些为后续开展激光冷却与囚禁实验研究奠定了基础, 也为开展其他新的分子冷却实验提供了参考.Different from atoms, molecules have unique properties, and play an important role in the research of atomic, molecular and optical physics. Cold molecules have important applications in science and have been studied for more than 20 years. But traditional methods, such as the Stark decelerator, have hit a bottleneck: it is hard to increase the phase space density of molecules. Extending the direct laser-cooling technique to new molecular species has recently been a hot topic and also a big challenge. In this review paper, on one hand, we make a brief review to recent progresses on the direct laser cooling of polar molecules. On the other hand, a demonstration on the feasibility of laser cooling BaF molecule has been experimentally illustrated, including the analysis on the molecular energy levels, measurements of the high-resolution spectroscopy, efficient pre-cooling and state preparation via buffer-gas cooling and detailed investigations on the molcule-light interactions. All these results not only pave the way for future laser-cooling and -trapping experiments, but also serve as a reference for the laser-cooling explorations on new molecular species.
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] [109] -
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] [109] -
[1] 余泽鑫, 刘琪鑫, 孙剑芳, 徐震.基于二维磁光阱的增强型199Hg冷原子团制备. 必威体育下载 , 2024, 73(1): 013701.doi:10.7498/aps.73.20231243 [2] 朱宇豪, 李瑞.基于组态相互作用方法对AuB分子低激发态电子结构和光学跃迁性质的研究. 必威体育下载 , 2024, 73(5): 053101.doi:10.7498/aps.73.20231347 [3] 冯卓, 索兵兵, 韩慧仙, 李安阳.CaSH分子高精度电子结构计算及用于激光制冷目标分子的理论分析. 必威体育下载 , 2024, 73(2): 023301.doi:10.7498/aps.73.20230742 [4] 王月洋, 尹俊豪, 严康, 林钦宁, 庞仁君, 王泽森, 杨涛, 印建平.基于多能级速率方程的CaH分子三维磁光囚禁模型. 必威体育下载 , 2022, 71(16): 163701.doi:10.7498/aps.71.20220304 [5] 郭芮, 谭涵, 袁沁玥, 张庆, 万明杰.LiCl-阴离子的光谱性质和跃迁性质. 必威体育下载 , 2021, (): .doi:10.7498/aps.70.20211688 [6] 尹俊豪, 杨涛, 印建平.基于 ${{\bf{A}}}^{{\boldsymbol{2}}}{{{\boldsymbol{\Pi}} }}_{{\boldsymbol{1/2}}}{\boldsymbol{\leftarrow }}{{\bf{X}}}^{{\boldsymbol{2}}}{{{\boldsymbol{\Sigma }}}}_{{\boldsymbol{1/2}}}$ 跃迁的CaH分子激光冷却光谱理论研究. 必威体育下载 , 2021, 70(16): 163302.doi:10.7498/aps.70.20210522[7] 李子亮, 师振莲, 王鹏军.采用永磁铁的钠原子二维磁光阱的设计和研究. 必威体育下载 , 2020, 69(12): 126701.doi:10.7498/aps.69.20200266 [8] 万明杰, 李松, 金成国, 罗华锋.激光冷却SH–阴离子的理论研究. 必威体育下载 , 2019, 68(6): 063103.doi:10.7498/aps.68.20182039 [9] 万明杰, 罗华锋, 袁娣, 李松.激光冷却KCl–阴离子的理论研究. 必威体育下载 , 2019, 68(17): 173102.doi:10.7498/aps.68.20190869 [10] 邢伟, 孙金锋, 施德恒, 朱遵略.AlH+离子5个-S态和10个态的光谱性质以及激光冷却的理论研究. 必威体育下载 , 2018, 67(19): 193101.doi:10.7498/aps.67.20180926 [11] 许雪艳, 侯顺永, 印建平.一种可控的Ioffe型冷分子表面微电阱. 必威体育下载 , 2018, 67(11): 113701.doi:10.7498/aps.67.20180206 [12] 李晓云, 孙博文, 许正倩, 陈静, 尹亚玲, 印建平.基于调制光晶格的中性分子束光学Stark减速与囚禁的理论研究. 必威体育下载 , 2018, 67(20): 203702.doi:10.7498/aps.67.20181348 [13] 张云光, 张华, 窦戈, 徐建刚.激光冷却OH分子的理论研究. 必威体育下载 , 2017, 66(23): 233101.doi:10.7498/aps.66.233101 [14] 苟维, 刘亢亢, 付小虎, 赵儒臣, 孙剑芳, 徐震.中性汞原子磁光阱装载率的优化. 必威体育下载 , 2016, 65(13): 130201.doi:10.7498/aps.65.130201 [15] 刘建平, 侯顺永, 魏斌, 印建平.亚声速NH3分子束静电Stark减速的理论研究. 必威体育下载 , 2015, 64(17): 173701.doi:10.7498/aps.64.173701 [16] 许忻平, 张海潮, 王育竹.一种实现冷原子束聚集的微磁透镜新方案. 必威体育下载 , 2012, 61(22): 223701.doi:10.7498/aps.61.223701 [17] 孙羽, 冯高平, 程存峰, 涂乐义, 潘虎, 杨国民, 胡水明.利用激光冷却原子束测量氦原子精密光谱. 必威体育下载 , 2012, 61(17): 170601.doi:10.7498/aps.61.170601 [18] 张宝武, 张萍萍, 马艳, 李同保.铬原子束横向一维激光冷却的蒙特卡罗方法仿真. 必威体育下载 , 2011, 60(11): 113701.doi:10.7498/aps.60.113701 [19] 张鹏飞, 许忻平, 张海潮, 周善钰, 王育竹.紫外光诱导原子脱附技术在单腔磁阱装载中的应用. 必威体育下载 , 2007, 56(6): 3205-3211.doi:10.7498/aps.56.3205 [20] 谢 旻, 凌 琳, 杨国建.非简并Λ型三能级原子的速度选择相干布居俘获. 必威体育下载 , 2005, 54(8): 3616-3621.doi:10.7498/aps.54.3616
下载:
计量
- 文章访问数:9849
- PDF下载量:230
- 被引次数:0