Diffraction Order Overlap in a Czerny-Turner Setup

Czerny-Turner setup is widely used to analysis the spectral information of light sources. Typically, a parabolic mirror is used to collimated the source first, and then a diffraction grating will spatially separate the colors spatially. A simulation of the complete setup, including real reflective mirrors and diffractive gratings is presented. Particularly, the higher diffraction orders and possible overlapping between different orders are investigated.

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