Theory of second-harmonic generation in colloidal crystals

Details Theory of second-harmonic generation in colloidal crystals Theory of second-harmonic generation in colloidal crystals

2006-11-14

arxiv.org/abs/physics/0611136v4

J. Phys. Chem. C 112, 621 (2008)

Physics

Optics

23 pages, 8 figures

Scientific paper

10.1021/jp0749975

On the basis of the Edward-Kornfeld formulation, we study the effective susceptibility of secondharmonic generation (SHG) in colloidal crystals, which are made of graded metallodielectric nanoparticles with an intrinsic SHG susceptibility suspended in a host liquid. We find a large enhancement and redshift of SHG responses, which arises from the periodic structure, local field effects and gradation in the metallic cores. The optimization of the Ewald-Kornfeld formulation is also investigated.

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