The most powerful lasers now being built, such as the forthcoming Extreme Light Infrastructure (ELI) project underway in Europe, may approach the physical ceiling of laser intensity -- they may turn out to be the most powerful lasers that ever can be built, says a new article on the PhysicsBuzz blog.
That finite limit on how intense a laser can get is hypothesized to exist because, at sufficiently high energies, matter can be created out of light.
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