中国物理B ›› 2003, Vol. 12 ›› Issue (10): 1143-1148.doi: 10.1088/1009-1963/12/10/316

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Effects of matrices on Mie scattering in the mid-infrared region

李曙光1, 侯蓝田1, 郭红莲2, 张道中2, 李兆霖2, 刘晓东3   

  1. (1)Institute of Infrared Optical Fibres and Sensors, Yanshan University, Qinhuangdao 066004, China; (2)Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (3)Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; Department of Electromechanical and Information Engineering, Dalian Nationality University, Dalian 116600, China
  • 收稿日期:2002-09-09 修回日期:2003-04-11 出版日期:2003-10-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the State Key Development Program for Basic Research of China (Grant No 2001CB610402) and the National Natural Science Foundation of China (Grant No 1989380).

Effects of matrices on Mie scattering in the mid-infrared region

Liu Xiao-Dong (刘晓东)ab, Li Shu-Guang (李曙光)c, Guo Hong-Lian (郭红莲)a, Zhang Dao-Zhong (张道中)a, Li Zhao-Lin (李兆霖)a, Hou Lan-Tian (侯蓝田)c    

  1. a Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b Department of Electromechanical and Information Engineering, Dalian Nationality University, Dalian 116600, China; c Institute of Infrared Optical Fibres and Sensors, Yanshan University, Qinhuangdao 066004, China
  • Received:2002-09-09 Revised:2003-04-11 Online:2003-10-16 Published:2005-03-16
  • Supported by:
    Project supported by the State Key Development Program for Basic Research of China (Grant No 2001CB610402) and the National Natural Science Foundation of China (Grant No 1989380).

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摘要： Various Mie scattering systems, each having a transparent matrix, are studied in the mid-infrared region. Our three theoretical scattering systems correspond to a lossless scatterer, an anomalous dispersive dielectric scatterer and a metal scatterer, each in a non-air usual matrix. The refractive-index effects of the matrix on scattering and extinction efficiencies in the mid-infrared region are found to be quite different in different cases. Although the non-air usual matrix reduces scattering and extinction efficiencies in the first kind of system, it may or may not help scatter and extinguish the mid-infrared radiation in the second, and it has little effect on them in the third.

Abstract: Various Mie scattering systems, each having a transparent matrix, are studied in the mid-infrared region. Our three theoretical scattering systems correspond to a lossless scatterer, an anomalous dispersive dielectric scatterer and a metal scatterer, each in a non-air usual matrix. The refractive-index effects of the matrix on scattering and extinction efficiencies in the mid-infrared region are found to be quite different in different cases. Although the non-air usual matrix reduces scattering and extinction efficiencies in the first kind of system, it may or may not help scatter and extinguish the mid-infrared radiation in the second, and it has little effect on them in the third.

Key words: Mie scattering, mid-infrared, anomalous dispersion, refractive index

中图分类号:  (Diffraction and scattering)

  • 42.25.Fx
78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 78.30.-j (Infrared and Raman spectra)