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Thursday, October 1, 2009

CHIRPED-PULSE AMPLIFICATION: Petawatt now, exawatt on the horizon

Completed in early 2008 at the University of Texas at Austin, the Texas Petawatt is a 200 J, 150 fs, mixed-glass, optical-parametric chirped-pulse-amplifier (OPCPA) laser that has reached a peak power output of 1.1 petawatts (1.1 × 1015 W)–more than 2000 times the power output of the entire U.S. electrical grid. And now, according to Todd Ditmire, project director, and Mikael Martinez, project manager, it appears possible to use the technology developed for the laser in future work toward developing an exawatt (1018 W) laser.

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