1. Specific features of laser beams

By now, the theory of laser radiation is well known [1][2][3][4] , so we'll confine ourselves to highlighting the specific features of industrial power laser beams.

The term laser (Light Amplification by Stimulated Emission of Radiation) refers to a source emitting spatially and temporally coherent monochromatic radiation.

In the case of power lasers, this property of spatial and temporal coherence is very limited and is not used for surface treatments.

1.1 Energy absorption

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Specific features of laser beams

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References

(1) - SALLAMAND (P.), PELLETIER (J.M.) - Materials Science and Eng. A171, 263 (1993).
(2) - MORDIKE (B.L.) - In Proc. 6 ^th Euop. Conf. On Laser treatment of Material, ECLAT'96, 16-18 sept. 1996, Stuttgart, 307 (1996).

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