Spectral focusing characteristics of a grazing-incidence flat-field grating spectrometer |
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Authors: | Xie Xin-Hu Liu Ya-Qing Fan Pin-Zhong and Li Ru-Xin |
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Institution: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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Abstract: | The spectral focusing characteristics of a grazing-incidence flat-field spectrometer with a spherical variable-line-spacing grating in the 5-40nm spectral range are presented. The spectrometer can be used for any object at a distance in the 50mm-infinity range from the grating apex with a diffracted spectrum sharply focused on an almost flat focal plane at a constant distance from the grating apex. |
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Keywords: | spectrometer grating |
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