Modelling and Optimization of Diffraction Grating Topology for Operating in High Orders

The paper considers the issue of increasing the intensity of diffracted light to higher orders upon diffraction by an amplitude transmission grating. The issue of optimizing the topology of a high-order diffraction grating by computer simulation methods is considered. The optimum value of the parameters of the strokes was found for the successful use of the +4 diffraction order for the analysis of the spectra of optical radiation.