Is this possible? Can a E&M wave be controlled in a meaningful way by an electric and/or magnetic field?
I know that charged particles are acted upon by these fields, that’s how particle accelerators work, but what about applied to camera lenses or other optical systems? In essence, why are we using glass and mirrors to interact with light, why not devices that generate fields?
I also think this is different but related to a waveguide, which does modify how the light propagates in a fundamentally different way than glass, but its based on boundary conditions not an externally applied field.
I guess my first thought is that the answer is no because the fields would not coherently interact, but I am interested if other people have experience with this!