Journal of Shanghai University(Natural Science Edition) ›› 2013, Vol. 19 ›› Issue (6): 598-605.doi: 10.3969/j.issn.1007-2861.2013.06.009

• Mathematics.Physics and Chemistry • Previous Articles     Next Articles

Light Extinction Properties of Granular Gas in Vacuum Deposition Process

HUANG Kai1,2, WANG Zhi-liang1,2, ZHOU Zhe-wei1,2, ZHANG Jin-song3, ZHANG Jian-hua3   

  1. 1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China; 2. Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072, China; 3. School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China
  • Online:2013-12-30 Published:2013-12-30

Abstract: Assume that the vapor of organic polymers in a vacuum deposition process is composed of spherical particle by coarse graining to form a multiple particle system, and consider extinction properties of light for such a system consisting of up to 3 000 randomly distributed particles. The generalized Lorenz-Mie theory from electromagnetic theory is used. The results show that, with the increase of the size and number of primary particles, the extinction coefficients go up at the beginning and fall down afterwards, indicating the presence of maximum values in the extinction coefficients. The energy of a plane incident wave decays faster than that of a Gaussian wave. Properties of electromagnetic fields under different primary particle sizes are also studied.

Key words: extinction property, generalized Lorenz-Mie theory, multiple particle system, thermal evaporation in vacuum

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