Mechanically ruled aberration-corrected concave gratings.
Mechanically ruled aberration-corrected concave gratings.
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DOI：
10.1364/ao.19.003987
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发表时间：
1980-12
期刊：
影响因子：
1.9
通讯作者：
T. Harada;T. Kita
中科院分区：
文献类型：
--
作者：
T. Harada;T. Kita
采用数控直纹机对带有变间距弯曲槽的凹面光栅进行了直纹校正。在设计像差校正凹面光栅时，机械方法比全息方法有更大的自由选择空间变化量。采用机械直纹像差校正凹面光栅，设计并制作了高效可见-紫外单色仪和彗形消像差Seya-Namioka单色仪。该光栅可用于VUV单色仪和光谱仪，具有更好的图像聚焦性能。
Aberration-corrected concave gratings with curved and variable spacing grooves are ruled with a numerically controlled ruling engine. In the design of aberration-corrected concave gratings, mechanical methods allow more freedom to choose the amount of space variation than do holographic methods. A highly efficient visible-UV monochromator and a coma-type aberration-reduced Seya-Namioka monochromator have been designed and fabricated using mechanically ruled aberration-corrected concave gratings. The gratings can be used with VUV monochromators and spectrographs with improved image focusing properties.