Can EM waves like radio waves that can traverse solid matter, be combined/mixed with

Apr 2016
10
0
Can EM waves like radio waves that can traverse solid matter, be combined/mixed with other EM waves to become EM waves that get absorbed by?
- electrons.
Also can EM waves that traverse, if certain EM waves are mixed together, say three em waves combined into a single beam, as the EM waves traverse a solid block of matter, is there a point WHILE the mixed EM beams are INSIDE the block of matter, can the beams become beams that get absorbed by electrons, to raise the electrons to shell levels, that are the same as in glass.
Thank you for your help, anything helps even a few words.