My question is: Is it possible to make laser beams viable midair without smoke? I thought it would be a great idea to have a (second) smartphone or pc screen without having a solid screen. The reason why it has to be without smoke is that smoke would be too dependent on the environment.
If it is possible to make laser beams appear in some way midair (without smoke, just air), would this be possible? I am not sure if its possible with two lasers "collide" or some other way.