论文标题
交叉梁放慢以增强狭窄的线ytterbium磁磁陷阱
Crossed-Beam slowing to enhance narrow-line Ytterbium Magneto-Optic Traps
论文作者
论文摘要
我们展示了一种在556 nm $ {^1S} _0 \ rightArrow {^3p} _1 $ betercombination thercombination Transition（狭窄的线圈$γ_g=2π2222222222222222222。跟随传统的Zeeman在399 nm $ {^1s} _0 \ rightArow {^1p} _1 $ transition（Broad LineWidth $γ_p=2π\ times 29 $ MHz）附近，原子梁放慢速度，在交叉灯光的几何相近，在频率相同的转换附近，在频率下进行了两个激光束。使用此技术，我们观察到狭窄的YB MOT的原子加载速率的改进为6。这种方法的相对简单性和普遍性使其很容易在涉及狭窄的MOT的其他实验中采用。我们还提供了对这个两阶段放缓过程的数值模拟，该过程与观察到的对实验参数的依赖性良好一致，并使用它来评估该方法的潜在改进。
We demonstrate a method to enhance the atom loading rate of a ytterbium (Yb) magneto-optic trap (MOT) operating on the 556 nm ${^1S}_0 \rightarrow {^3P}_1$ intercombination transition (narrow linewidth $Γ_g = 2π\times 182$ kHz). Following traditional Zeeman slowing of an atomic beam near the 399 nm ${^1S}_0 \rightarrow {^1P}_1$ transition (broad linewidth $Γ_p = 2π\times 29 $ MHz), two laser beams in a crossed-beam geometry, frequency tuned near the same transition, provide additional slowing immediately prior to the MOT. Using this technique, we observe an improvement by a factor of 6 in the atom loading rate of a narrow-line Yb MOT. The relative simplicity and generality of this approach make it readily adoptable to other experiments involving narrow-line MOTs. We also present a numerical simulation of this two-stage slowing process which shows good agreement with the observed dependence on experimental parameters, and use it to assess potential improvements to the method.
