Second Harmonic Generation from Metallic 2-D Scatterers

被引:1
|
作者
Centini, M. [1 ]
Benedetti, A. [1 ]
Scalora, M. [2 ]
Sibilia, C. [1 ]
Bertolotti, M. [1 ]
机构
[1] Univ Roma La Sapienza, Dipartimento Energet, Via A Scarpa 16, I-00161 Rome, Italy
[2] RDECOM, AMSRD AMR WS ST, Charles M Bowden Res Ctr, Redstone Arsenal, AL 35898 USA
来源
关键词
nonlinear optics; metals; sub-wavelength scatterers; MAGNETIC METAMATERIALS; LIGHT; MEDIA;
D O I
10.1117/12.821610
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have developed a model based on a Green function approach to numerically investigate the second harmonic generation process in two dimensional metallic nano-objects. The linear optical response of metals in the visible regime is modeled by taking into account both free and bound electrons contributions. On the other hand, at this stage, only the contribution of free electrons is considered for the nonlinear response. Both bulk and surface nonlinear polarization source terms have been evaluated for objects of arbitrary shape. We show that our model has the potential for further improvements and could be a useful tool to investigate second harmonic emission by single or periodically arranged metallic sub-wavelength objects in a dielectric host material.
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页数:9
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