First polarization measurements of OPHELIE: a versatile polarization VUV undulator at Super-ACO
First polarization measurements of OPHELIE: a versatile polarization VUV undulator at Super-ACO
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OPHELIE 的首次偏振测量：Super-ACO 的多功能偏振 VUV 波荡器
DOI：
10.1117/12.370097
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
L. Nahon
中科院分区：
文献类型：
--
作者：
C. Alcaraz;R. Thissen;M. Compin;A. Jolly;M. Drecher;L. Nahon
本文报告了 LURE Super-ACO 存储环中新型高通量/高分辨率 VUV 光束线 SU5 的交叉重叠电磁波荡器 OPHELIE 产生的偏振的首次表征。这些测试的光束线配置在波荡器之后减少为单镜 M1、TGM 单色仪和多重反射偏振计。通过在高偏振光线性（Ptot 大于 95%）或圆形（Ptot 高达 80%）单色仪之后的测量，已证明波荡器产生的偏振的多功能性约为 7 eV。产生强垂直线性偏振的标准操作模式以及其他奇异模式，如水平和倾斜线性偏振、左手和右手偏振以及这些模式之间的切换，已经在波荡器光谱上的很大范围的光子能量上得到了验证。
This paper reports on the first characterization of the polarization generated by the crossed overlapped electromagnetic undulator, OPHELIE, of the new high flux/high resolution VUV beamline, SU5, in the Super-ACO storage ring at LURE. The beamline configuration for these tests was reduced after the undulator to a single mirror M1, a TGM monochromator and a multiple-reflection polarimeter. The versatility of polarizations generated by the undulator has been demonstrated around 7 eV by the measurements after the monochromator of highly polarized light either linearly (Ptot greater than 95%) or circularly (Ptot up to 80%). The standard mode of operation which produces a strong vertical linear polarization as well as the other exotic modes like the horizontal and the tilted linear polarizations, the left- and right-handed polarization and the switching between these modes, have been validated for a very large range of photon energies across the undulator spectrum.