Design of fully spatially coherent extreme-ultraviolet light sources
Design of fully spatially coherent extreme-ultraviolet light sources
复制标题
全空间相干极紫外光源的设计
DOI：
10.1063/1.1739276
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发表时间：
2004
影响因子：
4
通讯作者：
I. Christov
中科院分区：
文献类型：
--
作者：
A. Libertun;Xiaoshi Zhang;A. Paul;E. Gagnon;T. Popmintchev;S. Backus;M. Murnane;H. Kapteyn;I. Christov
我们的实验表明，为了产生完全空间相干的极紫外（EUV）光束使用高次谐波产生，它是必要的，引导驱动激光束在长的相互作用长度在充气空心波导。数值模拟表明，在传播的激光通过一个长的等离子体填充的引导，激光束形成一个稳定的本征模均匀的空间相位，即使在非常高的电离水平。这导致紧凑的、高度空间相干的EUV源，其可用于EUV计量、显微镜、干涉测量和全息术中的应用。
We demonstrate experimentally that, in order to generate fully spatially coherent extreme-ultraviolet (EUV) beams using high-harmonic generation, it is necessary to guide the driving laser beam over long interaction lengths in gas-filled hollow waveguides. Numerical simulations show that, in propagating the laser through a long plasma-filled guide, the laser beam forms a stable eigenmode with uniform spatial phase, even at very high levels of ionization. This results in a compact, highly spatially coherent, EUV source useful for applications in EUV metrology, microscopy, interferometry, and holography.