I've been contemplating an experiment on a 1-dimensional system which would require a single light source to be split into two separate sources which are exactly out of phase with each other. The idea is to focus the beams near each other (but not overlapping) along the 1D object. Any phonons created by one source would be quenched by the other source, so that the object can be illuminated without invoking significant thermal effects. I'm not an expert in optics - is it a fairly straightforward problem to split a single source into two out-of-phase sources? If so, what optics equipment would be necessary? Thanks in advance for the help!