Lasers have a wide range of applications, but can be very costly to produce at high power/intensity. Since light is nothing more than a narrow band of the electromagnetic spectrum, it makes me wonder if the same high power/intensity applications can be achieved at a lower cost by concentrating other wavelengths (e.g. Infrared, radio, etc.)
A cursory google search revealed nothing of this sort, which makes me suspect that i this is not possible. But i just want a clear answer as to whether other electromagnetic waves (besides light) can be concentrated and propagated as a beam invthe same way as a laser. If possible, i'd also like to understand if/why larger wavelengths hinder our ability to concentrate these waves into high power/intensity applications.