Hi! I'd really need someone to tell me if I'm on the right track here. What I need to do is a research on electromagnetic radiation-matter interactions, based on phonon-photon interactions. Does this include any of the following: photoelectric effect, Compton scattering, Rayleigh scattering, Thomson scattering, nuclear photo effect, electron positron pair production? As you can see, I'm having trouble comprehending what phonon really is an what role it has in these interactions (if any), but I'm currently searching, so I'll get to that. All I'd need to know right now if I'm on the right track with these effects and scatterings mentioned above: are those based on phonon-photon interactions? Oh, and some recommendation of literature would mean a world to me, since I currently have no idea from where to start.