Nanochemical effects in femtosecond laser ablation of metals

We study chemical energy released from the oxidation of aluminum in multipulse femtosecond laser ablation in air and oxygen. Our study shows that the released chemical energy amounts to about 13% of the incident laser energy, and about 50% of the ablated material is oxidized. The ablated material ma...

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Bibliographic Details
Published in:Applied physics letters 2013-02, Vol.102 (7)
Main Authors: Vorobyev, A. Y., Guo, Chunlei
Format: Article
Language:English
Subjects:
ABLATION
Ablative materials
AIR
ALUMINIUM
ATOMS
Chemical energy
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Femtosecond
Laser ablation
LASER RADIATION
Lasers
MASS
Nanocomposites
Nanomaterials
Nanostructure
NANOSTRUCTURES
OXIDATION
OXYGEN
PHOTOCHEMISTRY
SOLIDS
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Summary:We study chemical energy released from the oxidation of aluminum in multipulse femtosecond laser ablation in air and oxygen. Our study shows that the released chemical energy amounts to about 13% of the incident laser energy, and about 50% of the ablated material is oxidized. The ablated material mass per laser pulse is measured to be on the nanogram scale. Our study indicates that femtosecond laser ablation is capable of inducing nanochemical reactions since the femtosecond laser pulse can controllably produce nanoparticles, clusters, and atoms from a solid target.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4793521