Focusing coherent soft-x-ray radiation to a micrometer spot size with an intensity of 10(14) W/cm2.
Focusing coherent soft-x-ray radiation to a micrometer spot size with an intensity of 10(14) W/cm2.
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DOI：
10.1364/ol.29.001927
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发表时间：
2004-08
期刊：
影响因子：
3.6
通讯作者：
H. Mashiko;A. Suda;K. Midorikawa
中科院分区：
文献类型：
--
作者：
H. Mashiko;A. Suda;K. Midorikawa
我们研究了高次谐波转换产生的强相干软x射线辐射的可聚焦性。29.6nm的27次谐波由具有SiC/Mg多层膜的离轴抛物面反射镜聚焦。从Ce：YAG闪烁体上的软X射线光子诱导的可见荧光中观察到焦斑图像。我们证明了软X射线束聚焦到1微米的光斑大小，峰值强度为1 × 10（14）W/cm 2，这是我们所知的最高的软X射线区域的报告。
We investigate the focusability of intense coherent soft-x-ray radiation generated by high-order harmonic conversion. The 27th-harmonic wave at 29.6 nm is focused by an off-axis parabolic mirror with a SiC/Mg multilayer coating. Focal-spot images are observed from the visible fluorescence induced by the soft-x-ray photons on a Ce:YAG scintillator. We demonstrate focusing of the soft-x-ray beam to a 1-microm spot size with a peak intensity of 1 x 10(14) W/cm2, which is to our knowledge the highest ever reported in the soft-x-ray region.