Broadband dielectric mirror coatings for Fabry-Perot spectroscopy.

A general approach to the design of broadband dielectric multilayer coatings for Fabry-Perot spectroscopy is described, with specific application to the design of coatings for the PEPSIOS spectrometer. Designs are presented for reflectivities of 91.5 +/- 1.0% over spectral ranges (lambda(max)/lambda(min)) from 1.3 to 2.0.