Spherical Bessel and Hankel functions

spherical Bessel functions for interior fields

For the interior fields, the components are real-valued, therefore the animated real-part has fixed zero-crossings.
spherical Bessel functions for interior fields

spherical Hankel functions for exterior fields

For exterior fields, zero-crossings must travel outwards and the magnitude must decay with 1/r after some distance.
spherical Hankel functions for radiation