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]