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The article presents numerical investigations of high-contrast grating mirrors. First, it shows the basis of a new numerical method for computing the parameters of the grating and next it describes the results of the analysis of the manufacturing imperfections impact on the reflection coefficient. Finally, it shows the considerations on the performance of high-contrast gratings in typical designs of VCSELs.

Modelling of high-contrast grating mirrors. The impact of imperfections on their performance in VCSELs