Cold atoms and molecules from fragmentation of decelerated SO{sub 2}
Cold atoms and molecules from fragmentation of decelerated SO{sub 2}
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DOI：
10.1103/physreva.74.040701
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发表时间：
2006-10
影响因子：
2.9
通讯作者：
Sebastian Jung;E. Tiemann;C. Lisdat
中科院分区：
文献类型：
--
作者：
Sebastian Jung;E. Tiemann;C. Lisdat
以 SO{sub 2} 分子为例，我们将讨论阈值光解作为产生冷分子或原子的可能性。 SO 和 O 片段具有较低的过剩能量，并且是自由基，对于冷化学等应用具有很高的兴趣。阈值行为可通过外部场调节，并且与冷原子碰撞中的费什巴赫共振研究非常相似。为了充分利用冷裂解，有必要在冷的分子样品中解离。在我们最初的实验中，我们已经证明了 SO{sub 2} 的斯塔克显着减速。
Using the example of the SO{sub 2} molecule, we will discuss photodissociation at threshold as a possibility for producing cold molecules or atoms. The fragments SO and O have low excess energy and are free radicals with high interest for applications like cold chemistry. The threshold behavior is tunable by external fields and shows great similarity to Feshbach resonance studies in cold atom collisions. To take full advantage of the cold fragmentation, it is necessary to dissociate within a cold sample of molecules. In our initial experiments we have demonstrated substantial Stark deceleration of SO{sub 2}.