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环形光束的聚焦性质研究 被引量:15

Study of Focused Annular Beam
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摘要 从理想的环形光束出发 ,理论上分析了环形聚焦光束在焦点附近的光强分布情况 ,以及光束内外径之比对聚焦性质的影响 .然后利用数值模拟的手段 ,研究了带软化因子的环形光束的聚焦性质 ,在整体上给出了环形光束的聚焦性质 . Using theoretic analysis,the focusing properties of an ideal annular beam are given. The intensity distribution near the focal point is given explicitly to show the influence of the ratio of inner to outer radius. A practice soft-edge annular beam is also studied numerically and the similar properties are obtained to confirm our analysis.
出处 《光子学报》 EI CAS CSCD 北大核心 2003年第2期209-213,共5页 Acta Photonica Sinica
基金 国家自然科学基金 (6 978980 1) 广东省自然科学基金(2 0 0 0 30 6 1) 国家高技术惯性约束聚变主题资助项目
关键词 环形光束 聚焦光束 软化因子 Annular beam Focused beam Softening factor
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参考文献5

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