Optimized superstationary anastigmatic mounts of concave gratings.
Two subfamilies of concave grating superstationary anastigmatic mounts that provide minimum chromatic aberrations are described. The obtained approximate formulas can be used to design flat-field spectrographs and multi/demultiplexers for optical communication networks. Two specific mounts and their performance are presented.
Churin
E G
EG
Bayvel
P
P
Midwinter
J E
JE