| 高功率激光通过有中心遮拦透镜的聚焦 |
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| 引用本文： | 张彬,吕百达.高功率激光通过有中心遮拦透镜的聚焦[J].光学学报,1997,17(12):660-1664. |
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| 作者姓名： | 张彬 吕百达 |
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| 作者单位： | 四川大学激光物理与化学研究所 |
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| 基金项目： | 国家高技术青年基金,强辐射重点实验室资助 |
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| 摘 要： | 用广义惠更斯－菲涅耳衍射积分对有振幅调制和位相畸变的高功率激光束通过有中心遮拦透镜的聚焦特性作了详细研究，并对焦面处光束的可聚焦性进行了讨论。数值计算结果表明，功率集中度与光阑的遮拦比，光束截断参数以及振幅调制和位要畸变参数等有关。
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| 关 键 词： | 位相畸变 高功率 激光 聚焦 遮拉比 遮拦透镜 |
| 收稿时间： | 1996/8/11 |
Focusing of High Power Laser Passing Through a Lens with a Central Obstruction Aperture |
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| Zhang Bin,Lu Baida.Focusing of High Power Laser Passing Through a Lens with a Central Obstruction Aperture[J].Acta Optica Sinica,1997,17(12):660-1664. |
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| Authors: | Zhang Bin Lu Baida |
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| Abstract: | By using the generalized Huygens Fresnel diffraction integral, the focusing of high power laser beams with amplitude modulations and phase fluctuations passing a lens with a central obstruction aperture has been studied in detail. The beam focusability in the focal plane has been discussed. Numerical calculation results show the dependence of the power (energy) focusability on the obstruction ratio, truncation parameter, the amplitude modulation and phase fluctuation parameters. |
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| Keywords: | high power laser with amplitude modualtions and phase fluctuations focusing properties obstruction ratio power (energy) focusability |
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