Second harmonic generation from a nanopatterned isotropic nonlinear material

被引：127

作者：

Fan, Wenjun

Zhang, Shuang

Panoiu, N. -C.

Abdenour, A.

Krishna, S.

Osgood, R. M., Jr.

Malloy, K. J.

Brueck, S. R. J. ^{[1
]}

机构：

[1] Univ New Mexico, Ctr High Technol Mat & Elect, Albuquerque, NM 87106 USA

[2] Univ New Mexico, Dept Comp Engn, Albuquerque, NM 87106 USA

[3] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA

来源：

NANO LETTERS | 2006年 / 6卷 / 05期

关键词：

D O I：

10.1021/nl0604457

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Second harmonic generation (SHG) from a nanopatterned isotropic nonlinear material ( GaAs) located inside the subwavelength gaps of a metallic coaxial array is demonstrated. The SHG results from the strong electromagnetic fields in the vicinity of the coaxial gaps; the signal strength is comparable to that from z-cut LiNbO3 even though the path length is much shorter (similar to 100 nm compared to 14 Am). Numerical simulations are in good agreement with the experimental data. The observation of a peak-wavelength blue shift between the SH spectrum and the linear transmission spectrum is explained.

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页码：1027 / 1030

页数：4

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