The simulation of scattering and absorption coefficient in the course of laser transmission

Lian-fen Wang; Yang Qiao; Xiao-fang Shen; Ai-jun Li; Hong-hui Sun

doi:10.1117/12.2197913

22 August 2015 The simulation of scattering and absorption coefficient in the course of laser transmission

Lian-fen Wang, Yang Qiao, Xiao-fang Shen, Ai-jun Li, Hong-hui Sun

Proceedings Volume 9656, International Symposium on Photonics and Optoelectronics 2015; 96560D (2015) https://doi.org/10.1117/12.2197913
Event: International Symposium on Photonics and Optics, 2015, Shanghai, China

Abstract

In this article, continued fraction improved algorithm was used as a better method. And the recurrence formula scattering coefficient is improved in the form of continued fractions calculation. In this way, the two key functions are recursive forward to solve the Mie scattering coefficient calculation directly in the presence of recursive data overflow problems and avoid the direct calculation of the value of the Bessel function beyond the computer limits the maximum data caused by data overflow problem. For 1.06um laser scattering numerically calculated the scattered light intensity, the scattering and extinction coefficient varies with particle size and refractive index profile parameters. The results showed that the absorption coefficient increases with increasing particle size parameters gradually increased, when after particle size parameter is greater than 10 remained unchanged; scattering coefficient change with particle size parameters periodic ups and downs; the smaller the imaginary part of the refractive index, the greater the scattering coefficient, the absorption coefficient is smaller, it had no effect on the refractive index of the real part of the two coefficients.

Citation Download Citation

Lian-fen Wang, Yang Qiao, Xiao-fang Shen, Ai-jun Li, and Hong-hui Sun "The simulation of scattering and absorption coefficient in the course of laser transmission", Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 96560D (22 August 2015); https://doi.org/10.1117/12.2197913

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KEYWORDS

Scattering

Laser scattering

Light scattering

Particles

Refractive index

Absorption

Mie scattering

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