| 环状球差透镜对超高斯光束光束质量的影响 |
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| 引用本文： | 季小玲, 吕百达. 环状球差透镜对超高斯光束光束质量的影响[J]. 强激光与粒子束, 2001, 13(01). |
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| 作者姓名： | 季小玲 吕百达 |
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| 作者单位： | 1.四川大学 激光物理与化学研究所, 四川 成都 61 0064;;;2.重庆师范学院 物理学与信息技术系, 重庆 400047 |
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| 摘 要： | 以桶中功率及β值为光束质量评价参数，分析了环状球差透镜的球差系数、遮拦比等参数对超高斯光束光束质量的影响。研究表明，在几何焦面和实际焦面的桶中功率曲线是不同的，选用适当参数的负球差环状透镜, 可获得比无球差环状透镜更高功率/能量集中度的光束。
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| 关 键 词： | 超高斯光束 光束质量 球差 桶中功率 β值 |
Effect of an annular spherically aberrated lens on the super-Gaussian beam quality |
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| ji xiao-ling, lü bai-da, . Effect of an annular spherically aberrated lens on the super-Gaussian beam quality[J]. High Power Laser and Particle Beams, 2001, 13. |
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| Authors: | ji xiao-ling lü bai-da |
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| Affiliation: | 1. Institute of Laser Physics and Chemistry,Sichuan University,Chengdu 610064,China;;;2. Department of Physics and Information Technology,Chongqing Normal College,Chongqing 400047,China |
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| Abstract: | The power in the bucket (PIB) and b -parameter are chosen as criteria for characterizing the beam quality, the effect of the spherical aberration coefficient and obscure ratio of an annular lens on the super-Gaussian beam quality is analyzed. It is shown that there are different PIB curves at the geometrical and real focal planes, and by a suitable choice of the parameter of negative spherically aberrated annular lens the better power /energy focusability can be achieved as compared with the annular lens without spherical aberration. |
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| Keywords: | super-gaussian beam beam quality spherical aberration power in the bucket b -parameter |
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