Fabry-Peacuterot nanocavities in multilayered plasmonic crystals for enhanced biosensing

被引：93

作者：

Artar, Alp ^{[1
]}

Yanik, Ahmet Ali

Altug, Hatice

机构：

[1] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 05期

关键词：

biosensors; cavity resonators; dielectric materials; Fabry-Perot resonators; light transmission; nanophotonics; nanosensors; optical arrays; optical fabrication; optical sensors; refractive index; sensor arrays; EXTRAORDINARY OPTICAL-TRANSMISSION; HOLE ARRAYS;

D O I：

10.1063/1.3202391

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated extraordinary light transmission effect through Fabry-Peacuterot cavities in multilayered plasmonic crystals formed by coupling two physically separated metallic nanohole and nanodisk array layers. Superior field-medium overlap is observed with Fabry-Peacuterot resonances as a result of stronger electromagnetic field confinement in the dielectric region far from the metallic surfaces. We show that these cavity resonances are highly sensitive to refractive index changes. The large field-material overlap combined with simple fabrication scheme used here makes these structures an ideal candidate for biosensing applications.

引用

页数：3

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