Superradiant cooling, trapping, and lasing of dipole-interacting clock atoms.
Superradiant cooling, trapping, and lasing of dipole-interacting clock atoms.
复制标题
偶极相互作用时钟原子的超辐射冷却、捕获和激光发射。
DOI：
10.1364/oe.27.031193
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发表时间：
2019
期刊：
影响因子：
3.8
通讯作者：
H. Ritsch
中科院分区：
文献类型：
--
作者：
Christoph Hotter;D. Plankensteiner;L. Ostermann;H. Ritsch
一个冷原子气体与反转的人口过渡耦合到一个光谐振腔的场模式构成了激光器的一般模型。对于准连续操作，需要对原子进行外部泵浦、捕获和冷却以限制它们，从而在谐振器内实现足够的增益。由于倒置原子是蓝色失谐光场中的高场搜索器，因此将腔模式调谐到原子增益跃迁的蓝色侧允许将激光发射与受激腔冷却和原子在激光场的波腹处的偶极捕获相结合。我们研究这样的配置使用粒子运动的半经典描述沿着腔轴。在早期工作的延伸，我们包括自由空间原子和腔衰减以及原子偶极偶极相互作用和它们相应的力。我们表明，对于一个适当的参数选择，即使在坏腔的限制，原子可以创建一个足够强的字段内的谐振腔，使他们被捕获和冷却通过超辐射激光作用与平均不到一个光子内的腔。
A cold atomic gas with an inverted population on a transition coupled to a field mode of an optical resonator constitutes a generic model of a laser. For quasi-continuous operation, external pumping, trapping and cooling of the atoms is required to confine them in order to achieve enough gain inside the resonator. As inverted atoms are high-field seekers in blue detuned light fields, tuning the cavity mode to the blue side of the atomic gain transition allows for combining lasing with stimulated cavity cooling and dipole trapping of the atoms at the antinodes of the laser field. We study such a configuration using a semiclassical description of particle motion along the cavity axis. In extension of earlier work we include free space atomic and cavity decay as well as atomic dipole-dipole interactions and their corresponding forces. We show that for a proper choice of parameters even in the bad cavity limit the atoms can create a sufficiently strong field inside the resonator such that they are trapped and cooled via the superradiant lasing action with less than one photon on average inside the cavity.
影响因子：
56.9
作者：
M. Norcia;R. J. Lewis-Swan;J. R. Cline;B. Zhu;A. Rey;J. K. Thompson
通讯作者：
M. Norcia;R. J. Lewis-Swan;J. R. Cline;B. Zhu;A. Rey;J. K. Thompson
影响因子：
35
作者：
Kessler, T.;Hagemann, C.;Ye, J.
通讯作者：
Ye, J.