Bichromatic state-insensitive trapping of caesium atoms
Bichromatic state-insensitive trapping of caesium atoms
复制标题
铯原子的双色状态不敏感捕获
DOI：
10.1080/09500340.2015.1073807
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发表时间：
2015
影响因子：
1.3
通讯作者：
Metbulut M
中科院分区：
文献类型：
--
作者：
Metbulut M
多能级原子的状态不敏感偶极子捕获可以通过适当选择捕获激光的波长来实现，以便与不同跃迁的相互作用导致感兴趣的基态和激发态的相等的AC斯塔克位移。然而，这种方法受到所需波长和适当功率的相干光源的可用性的严重限制。这项工作研究了铯原子的状态不敏感捕获，其所需的波长为 935.6 nm，在实验实现方面不方便。提出双色状态不敏感捕获来克服缺乏合适的激光源的问题。我们首先考虑通过二次和三次谐波生成获得的比例为 1:2 和 1:3 的激光波长对。我们发现931.8-1863.6 nm和927.5-2782.5 nm的波长组合适合对铯原子进行状态不敏感的捕获。此外，我们还研究了与当前可用的高功率激光器相对应的激光波长对产生的双色状态不敏感捕获。发现这些波长对中，一种激光器的波长对在 585–588 nm 和 623–629 nm 的范围内，另一种激光器的波长对在 1064–1080 nm 的范围内。
State-insensitive dipole trapping of multilevel atoms can be achieved by an appropriate choice of the wavelength of the trapping laser, so that the interaction with the different transitions results in equal AC Stark shifts for the ground and excited states of interest. However, this approach is severely limited by the availability of coherent sources at the required wavelength and of appropriate power. This work investigates state-insensitive trapping of caesium atoms for which the required wavelength of 935.6 nm is inconvenient in terms of experimental realization. Bichromatic state-insensitive trapping is proposed to overcome the lack of suitable laser sources. We first consider pairs of laser wavelengths in the ratio 1:2 and 1:3, as obtained via second- and third-harmonic generation. We found that the wavelength combinations 931.8–1863.6 nm and 927.5–2782.5 nm are suitable for state-insensitive trapping of caesium atoms. In addition, we examine bichromatic state-insensitive trapping produced by pairs of laser wavelengths corresponding to currently available high-power lasers. These wavelength pairs were found to be in the range of 585–588 nm and 623–629 for one laser and 1064–1080 nm for the other.
DOI：
10.1088/0953-4075/44/18/184010
发表时间：
2011-02
期刊：
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子：
--
作者：
R. Mukherjee;J. Millen;R. Nath;Matthew Jones;T. Pohl
通讯作者：
R. Mukherjee;J. Millen;R. Nath;Matthew Jones;T. Pohl
相干量子涨落的不相干表现导致退相干的出现
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Murat Çetinbas
通讯作者：
Murat Çetinbas