Analysis of scattering properties for magnetic absorbing particles at the radar wave band

作者：Yang Jingtao^*; Cai Xiaoshu; Shen Jianqi

来源：Acta Optica Sinica, 2009, 29(11): 3227-3231.

DOI：10.3788/AOS20092911.3227

• Absorption coefficients
• Absorption property
• Complex refractive index
• High permeability
• Magnetic particle
• Mie scattering theory
• Non-magnetic particles
• Numerical results
• Particles scattering
• Radar absorbing materials
• Radar waves
• Scattering char-acteristics
• Scattering co-efficient
• Scattering intensity
• Scattering property

This paper analyzes the light-scattering properties of the widely-used nanometer or micrometer absorbing magnetic particles at radar wave band based on Mie scattering theory. The effects of the permeability, refractive index and particle sizes on the scattering characteristics are analyzed. The scattering characteristics including scattering intensity, absorption coefficient, scattering coefficient and etc. by magnetic and non-magnetic particles are also compared analytically as well as those by absorbent and transparent particles. Numerical results indicate that the permeability variation has influences on the scattering characteristics such as scattering intensity and absorption property. It is found that the absorption ability increases and back scattering characteristic decreases towards high permeability while its effect on the particles scattering characteristics is restricted simultaneously by the complex refractive index.

• 出版日期2009