A package for producing a magnetic composite, wherein the package comprises, enclosed therein, a supply of optical resonant particles having magnetic properties or being adapted to have magnetic properties induced by a stimulus, and in that the package is configured and arranged to cooperate with at least one supplier device of a system, for providing said supply of optical resonant particles by extracting the same from the package,
- wherein said system comprises:
- said at least one supplier device for providing:
- a material in a non-continuous solid form;
- and
- said supply of optically resonant particles dispersed within at least a region of said material;
- and
- a controllable electromagnetic radiation source configured and arranged for exposing said optically resonant particles to electromagnetic radiation that causes the optically resonant particles to optically resonate to heat up and transfer heat to at least partially fuse together portions of said material in thermal contact therewith;
- and
- at least one controller adapted to control said at least one supplier device to provide the material in a non-continuous solid form and the optically resonant particles, and said controllable electromagnetic radiation source to emit said electromagnetic radiation to expose the optically resonant particles thereto;
- wherein the system further comprises a supply of said material in a non-continuous solid form, to feed said at least one supplier, wherein said material in a non-continuous solid form of said supply is a non-magnetic material.