Electromagnetic Scattering from Aggregates Embedded in Absorbing Media
Electromagnetic scattering occurs by the presence of discontinuities or scatterers.Ensemble of particles often form clusters or aggregates of particles.Most scattering models assume that such complex ensemble are placed in non-absorbing media.However,for many applications,absorption of the host media cannot be neglected for particular frequency or spectral ranges.In this paper,we study theoretically and numerically the electromagnetic scattering properties of fractal-like aggregates of silicon dioxide particles embedded in water at 193.4THz or 1550nm.The volume-integral equation is solved using the Discrete Dipole Approximation.These properties depend upon primary particle parameters as their size,shape or complex refractive index in addition to aggregate structure as its fractal dimension or gyration radius.Such properties are of interest in a range of scientific and industrial applications.The scattered Stokes vectors are calculated for an aggregate and applications in the fields of remote-sensing as RADAR or LiDAR but also materials characterization are discussed.
R.Ceolato N.Riviere M.J.Berg B.Biscans
Onera,The French Aerospace Lab,FR 31000,France Department of Physics and Astronomy,Mississippi State University Mississippi State,MS 39762,USA GC,UMR CNRS 5503,Universite de Toulouse,FR 31432,France
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
717-721
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）