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Determination of Molybdenum Ablation Threshold for Ultrashort Laser Pulses in Atmosphere and Vacuum Using the Diagonal Scan Technique

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Abstract

we present the results of measuring metallic molybdenum ablation threshold in the 30 femtoseconds regime. The measurements were performed in atmosphere and vacuum, resulting in values equal to 1.6 TW/cm2 3.8 TW/cm2, respectively. This values difference can be credited to a plasma etching that helps the ablation in the atmosphere case.

© 2010 Optical Society of America

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