运用修改过的有效介质理论及多层膜理论计算了这种表面的反射率谱，并将结果与实测值进行了比较。

The modified effective dielectric theory and multiple layer film theory are employed to calculate the reflection spectrum of this kind of surface.

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通过对极紫外多层膜反射特性的分析，得到了峰值反射率、带宽和中心波长分别随粗糙度、周期厚度以及比值变化的函数关系。

By analyzing reflective properties of multilayers, the peak reflectivity, bandwidth and centroid wavelength as a function of roughness, period thickness and thickness ratio were obtained.

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具有谐波选择和啁啾补偿作用的极紫外啁啾多层膜反射镜是产生亚飞秒脉冲的有效元件。

The chirped multilayer mirror in the extreme ultraviolet region can be used to select some high harmonics and compensate the chirp.

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