Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
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DOI：
10.1103/physreva.87.063426
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发表时间：
2013-06-28
影响因子：
2.9
通讯作者：
Sakemi, Yasuhiro
中科院分区：
文献类型：
--
作者：
Aoki, Takatoshi;Yamanaka, Yuki;Sakemi, Yasuhiro
我们证明了Rb和Sr的同时磁光俘获（MOT），并研究了在MOT中由于Sr的冷却激光的光电离而引起的Rb的特征损耗，确定了Rb在5 P（3/2）态461 nm处的光电离截面为1.4（1）× 10（-17）cm（2）。重要的是要考虑这种损失率，以实现足够大数量的被捕获的Rb原子，从而实现Rb和Sr的量子简并混合物。
We demonstrate the simultaneous magneto-optical trapping (MOT) of Rb and Sr and examine the characteristic loss of Rb in the MOT due to photoionization by the cooling laser for Sr. The photoionization cross section of Rb in the 5P(3/2) state at 461 nm is determined to be 1.4(1) x 10(-17) cm(2). It is important to consider this loss rate to realize a sufficiently large number of trapped Rb atoms to achieve a quantum degenerate mixture of Rb and Sr.