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首页> 外文期刊>Applied optics >FIRST-GENERATION HOLOGRAPHIC, GRAZING-INCIDENCE GRATINGS FOR USE IN CONVERGING, EXTREME-ULTRAVIOLET LIGHT BEAMS
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FIRST-GENERATION HOLOGRAPHIC, GRAZING-INCIDENCE GRATINGS FOR USE IN CONVERGING, EXTREME-ULTRAVIOLET LIGHT BEAMS

机译：第一代全息照相，入射入射光栅，用于会聚，极紫外光光束

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摘要

We present two holographic recording solutions that produce gratings suitable for use at grazing incidence in the extreme ultraviolet. The rulings are formed when the interference pattern of two spherical wave fronts is recorded on a planar substrate. Each grating is designed to minimize or eliminate the dominant aberration terms in order to maximize the spectral and spatial resolution of the system. In the first design, the dominant astigmatism term in a power-series expansion of the light path function is eliminated; in the second design, the dominant comatic terms are minimized. Each grating is placed directly in a converging light beam at grazing incidence to provide high system efficiency in the extreme ultraviolet. The aberration control afforded by both recording solutions is excellent, providing detector-limited spatial and spectral resolution over much of the usable bandpass. Furthermore, the aberration control is maintained over a wide range of beam speeds and off-axis angles, thereby outperforming conventional varied line-space gratings for use in the extreme ultraviolet. We discuss the methodology used to develop the recording solutions, model and compare the performance of the gratings, and discuss possible space-based applications for these gratings. [References: 23]
机译：我们提出了两种全息记录解决方案，这些解决方案可产生适合在极端紫外线下掠入射的光栅。当两个球形波阵面的干涉图样记录在一个平面基板上时，就形成了这些裁定。每个光栅被设计为最小化或消除主要像差项，以最大化系统的光谱和空间分辨率。在第一种设计中，消除了光路函数的幂级数展开中的主要像散项;在第二个设计中，主要的商务术语被最小化。每个光栅都以掠入射的方式直接放置在会聚光束中，以在极紫外下提供高系统效率。两种记录解决方案均提供出色的像差控制，可在许多可用带通上提供受探测器限制的空间和光谱分辨率。此外，在宽的光束速度和偏轴角范围内保持像差控制，从而胜过用于极端紫外线的常规变化的线距光栅。我们讨论了用于开发记录解决方案，建模和比较光栅性能的方法，并讨论了这些光栅的可能的基于空间的应用。 [参考：23]

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