High efficiency nano-focusing kinoform optics for synchrotron radiation.
High efficiency nano-focusing kinoform optics for synchrotron radiation.
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DOI：
10.1364/oe.19.011120
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发表时间：
2011-06
期刊：
影响因子：
3.8
通讯作者：
L. Alianelli;K. Sawhney;R. Barrett;I. Pape;A. Malik;M. Wilson
中科院分区：
文献类型：
--
作者：
L. Alianelli;K. Sawhney;R. Barrett;I. Pape;A. Malik;M. Wilson
现代同步加速器源几十年来一直在大能谱范围内提供强光子束。改进的光学器件和探测器的出现为许多学科中微米和纳米尺度的物质研究开辟了新的机会。虽然微聚焦光束的开发几乎每天都在许多光束线中进行，但 100 nm 光束的产生是在少数使用专用光学器件的仪器上实现的。折射透镜、波带片、曲面镜、多层透镜和多层劳厄透镜都可以在严格的光束稳定性条件下将 X 射线聚焦到小于 50 nm。将同步加速器辐射聚焦到小于 10 nm 的光束尺寸被认为是当前十年的最终目标。硅微技术迄今为止已经提供了一些最先进的X射线折射镜片；我们报告了一种新型硅相息图透镜的设计和表征，该透镜能够高效地传输纳米光束。
Modern synchrotron sources have provided for decades intense beams of photons over a large energy spectrum. The availability of improved optics and detectors has opened up new opportunities for the study of matter at the micrometre and nanometre scale in many disciplines. Whilst exploitation of micro-focused beams occurs almost daily in many beamlines, the production of beams of 100 nm is achieved on few instruments which use specialised optics. Refractive lenses, zone plates, curved mirrors, multilayers, and multilayer Laue lenses, can all focus x-rays to less than 50 nm under strict beam stability conditions. Focusing the synchrotron radiation to beam sizes smaller than 10 nm is considered the ultimate goal for the current decade. Silicon micro-technology has so far provided some of the most advanced x-ray refractive lenses; we report on design and characterisation of a novel silicon kinoform lens that is capable of delivering nano-beams with high efficiency.