Recomposition

noun

1. Specifically, in optics, the reassembling or gathering together of the dispersed or scattered constituents of a complex beam of light, as in the formation of white light by the bringing together of the various rays of the spectrum.
2. The act of recomposing; composition renewed.
3. The act of recomposing.
4. Composition again or anew; the process or result of recomposing.