Derivation of the expressions for optically active polarization densities, from the very basics of the multipole expansion
In this analysis, the path from the classical multipole expansion of the potentials over to the polarizability of the medium is outlined, and interpreted in terms of the contribution of the individual multipole moments.
cd multipole; makeCopyright (C) 2025, Fredrik Jonsson, under GPLv3. See enclosed LICENSE.
The source and documentation can be found at https://github.com/hp35/multipole