Dielectric mirrors are made to have extremely high reflectance
A)by stacking thin layers of a single dielectric material on a glass backing so that the reflections from the surfaces of the layers undergoconstructive interference.
B)by stacking thin layers of a single dielectric material on a glass backing so that the reflections from the surfaces of the layers undergo destructive interference.
C)by stacking thin layers of different dielectric materials on a glass backing so that the reflections from the surfaces of the layers undergo constructive interference.
D)by stacking thin layers of different dielectric materials on a glass backing so that the reflections from the surfaces of the layers undergo destructive interference.

Question

Quizplus · Accepted Answer

Dielectric mirrors are made by stacking thin layers of different dielectric materials on a glass backing, such as alternating layers of SiO2 and TiO2. The thickness and refractive index of each layer is chosen so that the reflections from the surfaces of the layers undergo constructive interference, resulting in high reflectance.

Dielectric Mirrors Are Made to Have Extremely High Reflectance