parabolic_profile_index
- pygrin.pygrin.parabolic_profile_index(n_0, pitch, length, r)[source]
Index of a parabolic grin lens at a particular radius.
- Parameters
n_0 – index of refraction at center of grin lens [unitless]
pitch – pitch or period of the lens [unitless]
length – axial length of the lens [mm]
r – distance from center of lens [mm]
- Returns
float – the index of a parabolic grin lens at r [unitless]