Such dielectric mirrors supply a substantial degree of wavelength-selective reflectance at the expected totally free surface wavelength λ When the thicknesses of alternating layers d1 and d2 with refractive indices n1 and n2 are this kind of that n1d1 + n2d2 = λ/two which then leads to the constructive interference https://juliar382nwe6.newbigblog.com/profile