Spatiotemporal separation of high harmonic radiation into two quantum path components
Spatiotemporal separation of high harmonic radiation into two quantum path components
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DOI：
10.1103/physreva.59.1367
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发表时间：
1999-02-01
影响因子：
2.9
通讯作者：
L'Huillier, A
中科院分区：
文献类型：
--
作者：
Gaarde, MB;Salin, F;L'Huillier, A
我们给出了高次谐波产生的时空分析，证明了几个量子路径对原子偶极矩的贡献。我们发现，谐波辐射在很大程度上可以描述为两个场的和，它们的相位与产生场的强度成正比。我们将我们的结果与最近演示这种分离的实验结果进行了比较[M.Bellini等人，Phys.莱特牧师。81,297(1998)]。我们展示了这种效应是如何影响时间和空间相干性的，并讨论了如何利用它来更好地控制产生的谐波辐射。[S1050-2947(99)00402-3]。
We present a spatiotemporal analysis of high harmonic generation, showing evidence for the presence of several quantum path contributions to the atomic dipole moment. We show that the harmonic radiation can largely be described as a sum of two fields having a phase proportional to the intensity of the generating field. We compare our results to recent experimental results demonstrating this separation [M. Bellini et al., Phys. Rev. Lett. 81, 297 (1998)]. We show how the temporal and spatial coherence properties are influenced by this effect, and discuss how it could be used to obtain better control of the generated harmonic radiation. [S1050-2947(99)00402-3].