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.
Received: 24 March 2004
Revised: 16 June 2004
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 69925513 and 19974058) and the State Key Programme of Basic Research of China (Grant No G1999075204).
Cite this article:
Xie Xin-Hua (谢新华), Liu Ya-Qing (刘亚青), Fan Pin-Zhong (范品忠), Li Ru-Xin (李儒新) Spectral focusing characteristics of a grazing-incidence flat-field grating spectrometer 2004 Chinese Physics 13 1826
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