Volume 47 Issue 10
Oct.  2018
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Hu Yihua, Huang Baokun, Gu Youlin, Zhao Yizheng. Model construction of biological particles' average extinction efficiency factor in far infrared band[J]. Infrared and Laser Engineering, 2018, 47(10): 1004003-1004003(7). doi: 10.3788/IRLA201847.1004003
Citation: Hu Yihua, Huang Baokun, Gu Youlin, Zhao Yizheng. Model construction of biological particles' average extinction efficiency factor in far infrared band[J]. Infrared and Laser Engineering, 2018, 47(10): 1004003-1004003(7). doi: 10.3788/IRLA201847.1004003

Model construction of biological particles' average extinction efficiency factor in far infrared band

doi: 10.3788/IRLA201847.1004003
  • Received Date: 2018-05-10
  • Rev Recd Date: 2018-06-20
  • Publish Date: 2018-10-25
  • With the increasing demands for new biological extinction materials in military and civilian fields, the artificially prepared flocculent particles were equivalent to bullet rosette particles, which were further used to build the biological particles with different structures as a unit particle. And the structures of biological particles were characterized by parameterization. Then the discrete dipole approximation (DDA) method was used to calculate the average extinction efficiency factor for biological particles in the far infrared band. The results indicate that the average extinction efficiency factor of biological particles is positively correlated to the size factor and porosity in the far infrared band. Based on studying the relationship of average extinction efficiency factor with size factor and porosity, the biological particles average extinction efficiency factor model in the far infrared band was constructed. Using that model, the computation time was shorter than that of the DDA method, and the calculation error is less than 10%. The model provides a theoretical basis for the further development and morphology control of biological extinction materials.
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Model construction of biological particles' average extinction efficiency factor in far infrared band

doi: 10.3788/IRLA201847.1004003
  • 1. State Key Laboratory of Pulsed Power Laser,Hefei 230037,China;
  • 2. Key Laboratory of Electronic Restriction,Hefei 230037,China

Abstract: With the increasing demands for new biological extinction materials in military and civilian fields, the artificially prepared flocculent particles were equivalent to bullet rosette particles, which were further used to build the biological particles with different structures as a unit particle. And the structures of biological particles were characterized by parameterization. Then the discrete dipole approximation (DDA) method was used to calculate the average extinction efficiency factor for biological particles in the far infrared band. The results indicate that the average extinction efficiency factor of biological particles is positively correlated to the size factor and porosity in the far infrared band. Based on studying the relationship of average extinction efficiency factor with size factor and porosity, the biological particles average extinction efficiency factor model in the far infrared band was constructed. Using that model, the computation time was shorter than that of the DDA method, and the calculation error is less than 10%. The model provides a theoretical basis for the further development and morphology control of biological extinction materials.

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