2D Arrays of Hexagonal Plasmonic Necklaces for Enhanced Second Harmonic Generation

被引：17

作者：

Gomez-Tornero, Alejandro ^{[1
,2
]}

Tserkezis, Christos ^{[3
]}

Mateos, Luis ^{[1
,2
,4
]}

Bausa, Luisa E. ^{[1
,2
]}

Ramirez, Mariola O. ^{[1
,2
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Mat, E-28049 Madrid, Spain

[2] Univ Autonoma Madrid, Inst Nicolas Cabrera, E-28049 Madrid, Spain

[3] Tech Univ Denmark, Dept Photon Engn, DK-2800 Lyngby, Denmark

[4] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

来源：

ADVANCED MATERIALS | 2017年 / 29卷 / 15期

关键词：

NONLINEAR PHOTONIC CRYSTALS; FERROELECTRIC DOMAIN-WALLS; SILVER NANOPARTICLES; NEAR-FIELD; LIGHT POLARIZATION; OPTICAL-RESPONSE; NANOSTRUCTURES; LINBO3; METASURFACES; EMISSION;

D O I：

10.1002/adma.201605267

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Researchers use hexagonal ferroelectric domain walls as artificial 2D sub-micrometer patterns on which strongly interacting Ag nanoparticles (NPs) can deposited forming hexagonal necklaces. Specifically, they combine ferroelectric domain engineering and polarization-mediated chemistry to obtain finely designed 2D plasmonic arrays of hexagonal supercells distributed on the polar surface of a LiNbO3 crystal. The hexagonal plasmonic necklaces support broad radiative plasmonic resonances allowing the enhancement of second harmonic generation (SHG) at the ferroelectric domain boundaries, which act as nanometric nonlinear sources.

引用

页数：6

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