Wavefront
= Wavefront
{wiki}
A wavefront is a surface of constant <phase function>. A <plane wave> has planar wavefronts; variations in <refractive index> distort them.
= Wavefront
{wiki}
A wavefront is a surface of constant <phase function>. A <plane wave> has planar wavefronts; variations in <refractive index> distort them.