Wednesday, August 11, 2010

Lasers Approach Their Ultimate Intensity Limit

Posted by samzenpus on Wednesday August 11, @03:20PM
from the biggest-pointer dept.
Flash Modin writes"Death Star style superlasers? Don't bet on it. High power lasers currently in development appear to be nearing the theoretical laser intensity limit, according to new research set to be published in the journal Physical Review Letters. Ultra-high-energy laser fields can actually convert their light into matter as shown in the late '90s at the Stanford Linear Accelerator (SLAC). This process creates an 'avalanche-like electromagnetic cascade' (also known as sparking the vacuum) capable of destroying a laser field. Physicists thought it might be a problem for lasers eventually, but this work indicates the technology is much closer to its limit than researchers believed. Apreprint is available here."

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