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arXiv 0709.4463physics.optics
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利用高次谐波的XUV数字同轴全息术

XUV digital in-line holography using high-order harmonics

G. Genoud, O. Guilbaud, E. Mengotti, S. -G. Pettersson, E. Georgiadou, E. Pourtal, C. -G. Wahlström, Anne L'Huillier

摘要:

提出了一种利用极紫外辐射实现时间分辨数字同轴全息术的方法。超短XUV脉冲作为飞秒激光的高次谐波产生,并且史瓦西物镜用于将谐波辐射聚焦在38 nm处并产生用于全息记录的强烈发散的参考光束。记录了细线的实验全息图,并对物体进行了再现。文中还介绍了仿真和重建的理论和算法。空间分辨率为几百纳米是可能实现的,微米分辨率范围内的演示。

英文摘要:

A step towards a successful implementation of timeresolved digital in-line holography with extreme ultraviolet radiation is presented. Ultrashort XUV pulses are produced as high-order harmonics of a femtosecond laser and a Schwarzschild objective is used to focus harmonic radiation at 38 nm and to produce a strongly divergent reference beam for holographic recording. Experimental holograms of thin wires are recorded and the objects reconstructed. Descriptions of the simulation and reconstruction theory and algorithms are also given. Spatial resolution of few hundreds of nm is potentially achievable, and micrometer resolution range is demonstrated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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