Czerny-Turner Setup

Czerny-Turner setup is widely used to analysis the spectral information of light sources. Typically, a parabolic mirror is used to collimate the source first, and then a diffraction grating will spatially separate the colors. By setting an exit slit properly, a specific color can be selected. A simulation of the complete Czerny-Turner setup, including real reflective mirrors and diffractive gratings is presented, especially with the grating modeled with Fourier modal method (FMM).

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