|MadSci Network: Physics|
Your question is somewhat unclear to me, because I am not sure what you mean by "increased light pressure". Increased compared to what? Soliton waves are solutions of certain one-dimensional nonlinear wave equations. Therefore, in order to see solitons we need to confine the light beam in some kind of a waveguide, such as an appropriately designed glass fiber. A pulse of light can then travel along the fiber for distances of kilometers with little change of its shape. A pulse of light carries both energy and momentum. Ignoring the nonlinear effects, which are usually small, the energy and the momentum are proportional to each other. I have the impression that you want to know if a "photon torpedo" is possible. In order to make this work, you need to connect your laser source to the target with a waveguide. This is currently being done in medicine, for some types of surgery. However, one does not have a waveguide available when one is trying to shoot down an airplane or a missile.
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