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Laser Damage in Materials
Semiannual rept. 1
NATIONAL BUREAU OF STANDARDS GAITHERSBURG MD
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The main objective of this program is the study of self-focusing in materials used in conjunction with high-energy laser systems. These studies are necessary because self-focusing is the main process which leads to bulk- intrinsic damage in laser materials. The damage appears as filamentary tracks in materials exposed to high-intensity laser radiation. Three mechanisms have been proposed to explain the effect electrostriction, Kerr effect, and thermal self-focusing.
APPROVED FOR PUBLIC RELEASE