短波长激光在柱面条状虚共焦非稳腔中的传输
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摘要: 用数值迭代方法求解了柱面条状虚共焦非稳腔的积分方程组。对相同及不同的菲涅耳数N-F和不同的放大率m等情况进行了数值计算。结果表明,在所取的N-F范围内近场光场强度的空间分布偏离均匀分布,但相位近似为均匀分布。其中小N-F和大m时不仅近场分布较为理想,而且远场强度的角分布接近衍射极限。Abstract: In this paper , we have been solved Fresnel integral equations by the numerical iterative method in virtual confocal unstable cavity with the strip mirrors of cylindrical surfaces. Computational results indicate that the distribution of nearfield intensity deviated from the uniform distribution and nearfield phase approximated the uniphase distribution in the NF and m range studied.When NF=5 and
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