Theoretical study on optical scattering and aborption behavior of spherical nanopaticle

This issue is numerically investigated by schematic model in which the optical scattering and absorption behavior of spherical nanoparticle is discussed. On the basis of classics effective medium theoretical, the renormalized effective parameters have been introduced. The simulation results are presented by comparisons with effective property models, the screening effect is also discussed in analyzing the cross-sections in different nanometric size. The phenomena of the shift in resonance frequency by varying the radii of the grain has been shown by the theoretical result.