Englert Christoph R, Brown Charles M, Bach Bernhard, Bach Erich, Bach Kirk, Harlander John M, Seely John F, Marr Kenneth D, Miller Ian
Appl Opt. 2017 Mar 10;56(8):2090-2098. doi: 10.1364/AO.56.002090.
Development of a new generation of low-groove density-blazed echelle gratings optimized for MIGHTI, a space-borne spatial heterodyne interferometer operating in the visible and near infrared is described. Special demands are placed on the wavefront accuracy, groove profile, and efficiency of these gratings. These demands required a new ruling for this application, with significant improvements over existing gratings. Properties of a new generation of highly efficient, plane gratings with 64 grooves/mm blazed at 8.2° are reported.
