meridional_curve

pygrin.pygrin.meridional_curve(n_0, pitch, length, r_i, theta_i, npoints=40)

Points on path of a ray passing through a grin lens.

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_i – radial distance that ray hits grin lens [mm]

• theta_i – angle of incidence [radians]

• npoints – integer number of points in the returned curve

Returns:

z –

array

axial points along the curve inside the grin lens [mm]

r: array

radial points along the curve inside the grin lens [mm]