Bhatt Hem, Patel Rajesh, Mehta R V
Department of Physics, Bhavnagar University, Bhavnagar 364 022, India.
J Opt Soc Am A Opt Image Sci Vis. 2010 Apr 1;27(4):873-7. doi: 10.1364/JOSAA.27.000873.
Mie scattering functions for a magnetizable sphere whose relative refractive index is dependent on the externally applied magnetic field are computed for four different sizes of the sphere. It is found that Mie resonances are observed at certain critical fields when the incident light is polarized with its electric vector perpendicular to the applied field. The width of resonance as well as the critical fields shifts with the increase in size of the spheres. Results are compared with the experimentally observed scattering effects in a dispersion of magnetite spheres in a ferrofluid.
针对四个不同尺寸的可磁化球体，计算了其相对折射率取决于外部施加磁场的米氏散射函数。研究发现，当入射光的电矢量垂直于外加磁场偏振时，在某些临界场会观察到米氏共振。共振宽度以及临界场会随着球体尺寸的增加而发生变化。将结果与在铁磁流体中磁铁矿球体分散体系中实验观察到的散射效应进行了比较。
