Theory of second-harmonic generation in colloidal crystals

C. Z. Fan (Department of Physics; Fudan University; Institute of Theoretical Physics; J. P. Huang; K. W. Yu (Department of Physics; Shanghai); the Chinese University of Hong Kong); Y. C. Jian

arxiv: physics/0611136 · v4 · submitted 2006-11-14 · ⚛️ physics.optics · physics.plasm-ph

Theory of second-harmonic generation in colloidal crystals

J. P. Huang , Y. C. Jian , C. Z. Fan (Department of Physics , Fudan University , Shanghai) , K. W. Yu (Department of Physics , Institute of Theoretical Physics , the Chinese University of Hong Kong) This is my paper

classification ⚛️ physics.optics physics.plasm-ph

keywords colloidalcrystalsformulationgenerationsusceptibilityarisesbasiscores

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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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Theory of second-harmonic generation in colloidal crystals

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