| 使用二元相位菲涅尔波带片产生轴向线聚焦 |
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| 引用本文： | 李玉同,张杰,鲁欣,金展,D.A.Pepler,C.N.Danson. 使用二元相位菲涅尔波带片产生轴向线聚焦[J]. 物理学报, 2005, 54(5): 2030-2033 |
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| 作者姓名： | 李玉同 张杰 鲁欣 金展 D.A.Pepler C.N.Danson |
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| 作者单位： | (1)CLRC Rutherford Appleton Laboratory,Chilton,Didcot,OXON,OX11 0QX. UK; (2)中国科学院物理研究所光物理实验室,北京 100080 |
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| 基金项目： | 国家自然科学基金（批准号：10204023, 10374115, 10335020，10105014，10390160）国家 高技术惯性约束聚变基金和高温高密度等离子体物理国防科技重点实验室资助的课题. |
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| 摘 要： | 介绍了一种全新的轴向线聚焦方案.采用菲涅尔波带片，在实验中产生了沿轴向长为5mm，宽 100μm的线聚焦.光学测量表明，线聚焦轴向强度分布比较均匀.这些参数基本上可以满足激 光等离子体实验的要求.关键词：菲涅尔波带片轴向线聚焦
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| 关 键 词： | 菲涅尔波带片 轴向线聚焦 |
| 文章编号： | 1000-3290/2005/54(05)2030-04 |
| 收稿时间： | 2004-03-24 |
Generation of axial line-focus using a binary-phase Fresnel zone plate |
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| Li Yu-Tong,Zhang Jie,Lu Xin,Jin Zhan,D.A.Pepler,C.N.Danson. Generation of axial line-focus using a binary-phase Fresnel zone plate[J]. Acta Physica Sinica, 2005, 54(5): 2030-2033 |
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| Authors: | Li Yu-Tong Zhang Jie Lu Xin Jin Zhan D.A.Pepler C.N.Danson |
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| Abstract: | In this paper, a uniform axial line_focus, which is important for the x_ray lase r amplification pumped by picosecond and femtosecond laser pulses, is generated by a binary_phase Fresnel zone plate. The performances of the plate are tested u sing a ultrashort_pulse laser. The results show that the length and the width of the line_focus are ～5mm and ～100μm respectively, when coupled with a 125mm f ocal length lens. The ratio of the peak intensity at the center of the line focu s to the intensity outside around the line focus is 7:1 |
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| Keywords: | Fresnel zone plate axial line-focus |
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