Paper Title:
Absorption of a Micro-Particle for Laser
  Abstract

This paper investigated the absorption of a micro-particle irradiated by laser. Micro-particles usually appear within the plasma induced by a laser or powder in the process of laser cladding. These particles are assumed to be spherical and neutral (no surface charge). Laser-particle interactions involve scattering, refraction, and diffraction phenomena. Refraction and diffraction can enhance radiation absorption. The complex optical indexes of material and size parameters of micro-particles characterize the absorption of particles in these materials processing. The electromagnetic wave theory and geometrical optics approach were utilized to analyze the absorption in the particle. The errors between these two methods were discussed for different indexes of absorption and size parameters. The compatibility of geometrical optics approach for a small particle is also presented.

  Info
Periodical
Materials Science Forum (Volumes 505-507)
Edited by
Wunyuh Jywe, Chieh-Li Chen, Kuang-Chao Fan, R.F. Fung, S.G. Hanson,Wen-Hsiang Hsieh, Chaug-Liang Hsu, You-Min Huang, Yunn-Lin Hwang, Gerd Jäger, Y.R. Jeng, Wenlung Li, Yunn-Shiuan Liao, Chien-Chang Lin, Zong-Ching Lin, Cheng-Kuo Sung and Ching-Huan Tzeng
Pages
97-102
DOI
10.4028/www.scientific.net/MSF.505-507.97
Citation
C. Y. Ho, M. Y. Wen, "Absorption of a Micro-Particle for Laser", Materials Science Forum, Vols. 505-507, pp. 97-102, 2006
Online since
January 2006
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$32.00
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