Polarization control in a crossed undulator without a monochromator
Polarization control in a crossed undulator without a monochromator
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DOI：
10.1088/1367-2630/aba730
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发表时间：
2020-08-01
影响因子：
3.3
通讯作者：
Katoh, Masahiro
中科院分区：
文献类型：
--
作者：
Kaneyasu, Tatsuo;Hikosaka, Yasumasa;Katoh, Masahiro
在这项研究中，证明了可以使用材料响应来实现交叉波动器光的偏振控制，而无需任何先前的单色化。两个波动体发出的非单色化水平和垂直极化辐射照射到He原子上，极紫外区的里德伯态被共振激发。通过观察He Rydberg态荧光衰变中的Zeeman量子拍，可以通过调节两个波动器之间的电子束轨道来控制光激发的偏振。
In this study, it was demonstrated that the polarization control of light from a crossed undulator can be achieved using material response, without any prior monochromatization. Nonmonochromatized horizontally and vertically polarized radiation emitted from two undulators is irradiated to He atoms, and Rydberg states in the extreme ultraviolet region are excited resonantly. The polarization of the photoexcitation is adjustable in a controlled manner by tuning the electron beam orbit between the two undulators, which is verified by observing Zeeman quantum beats in the fluorescence decays of the He Rydberg states.