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Spot-shadowing optimization to mitigate damage growth in a high-energy-laser amplifier chain

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Abstract

A spot-shadowing technique to mitigate damage growth in a high-energy laser is studied. Its goal is to minimize the energy loss and undesirable hot spots in intermediate planes of the laser. A nonlinear optimization algorithm solves for the complex fields required to mitigate damage growth in the National Ignition Facility amplifier chain. The method is generally applicable to any large fusion laser.

© 2008 Optical Society of America

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