[2] PI D Y,HUANG Y S,ZHANG D W,et al.Optimization of the flat-field holographic concave grating in wide spectral range［J］.Acta Physica Sinica,2010,59(2):1009- 1016.

[3] HUANG Y S,LI T,XU B L,et al.Calculation of the diffraction efficiency on concave gratings based on Fresnel-Kirchhoff’s diffraction formula［J］.Applied Optics,2013,52(5):1110-1116.

[8] HUTLEY M C.Diffraction gratings［M］.New York:Academic Press,1982.