rugate

Definitions

1. Having alternate ridges and depressions; wrinkled.
2. Having a varying refractive index.

Examples

“Unifacial, superior surface transversely rugate, with minute oririmes at the bottom of the furrows”

“Rugate coatings typically consist⟳ of a single layer deposited onto a substrate where the refractive index of the layer continuously changes as a function of depth.”

“Researchers have⟳ focused on various manufactured periodically nonhomogeneous dielectric materials, including rugate filters and periodically multilayered materials.”

CEFR level