Calculation of the Line Profiles Formed by Concave Gratings

概要

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A method has been developed for computing the line profile of spectral images formed by a concave grating. The method takes into account the local groove efficiency of the grating in estimating line intensities from a spot diagram incorporating a scalar diffraction theory of the plane grating. Comparisons showing close agreement between the calculated and measured profiles are presented for Hg lines. This calculation method can also be used to determine the optimum width of a concave grating to provide spectral images with both high intensity and good resolution. An example is given for a Seya-Namioka monochromator.
社団法人日本分光学会の論文