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Proceedings Paper

The propagations and thermal effects in material of laser beams with different spatial profiles
Author(s): Weiping Wang; Yuan Yonghua; Baida Lu; Cangli Liu
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Paper Abstract

Different laser beam distributions such as the beam with uniform profile. Gaussian, super-Gaussian and flattened Gaussian beams is discussed. Under the same power and radius, the expressions of intensity distributions and beam fill factors (the ratio of maximum intensity to average intensity) varying with beam orders for these beams have been derived, the propagations of laser beams with different profiles through an aperture lens are analyzed and compared. In the heat conduction equation, laser beam with different spatial profiles as a surface heat source is included. Numerical calculations are performed to give the different thermal effects on a thin 30CrMnSiA metal slab induced by these beams.

Paper Details

Date Published: 1 August 2003
PDF: 7 pages
Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); doi: 10.1117/12.516991
Show Author Affiliations
Weiping Wang, Sichuan Univ. (China)
Institute of Fluid Physics/CAEP (China)
Yuan Yonghua, Institute of Fluid Physics/CAEP (China)
Baida Lu, Sichuan Univ. (China)
Cangli Liu, Institute of Fluid Physics/CAEP (China)

Published in SPIE Proceedings Vol. 4948:
25th International Congress on High-Speed Photography and Photonics
Claude Cavailler; Graham P. Haddleton; Manfred Hugenschmidt, Editor(s)

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