Design and characterization of complementary Gaussian reflectivity mirrors

Abstract

A mirror with a Gaussian reflectivity profile and a complementary transmission has been designed. This nonabsorptive smooth mirror is based on radially varying the thickness of a high-refractive-index dielectric deposited on a transparent substrate. Prototypes have been fabricated for use around 10 μm. The reflection and transmission profiles of one of them have been measured together with the modifications of the reflected and transmitted wave fronts.