Monopole antenna arrays for optical trapping, spectroscopy, and sensing

被引：72

作者：

Cetin, A. E. ^{[1
,2
]}

Yanik, Ahmet Ali ^{[1
,2
]}

Yilmaz, Cihan ^{[3
]}

Somu, Sivasubramanian ^{[3
]}

Busnaina, Ahmed ^{[3
]}

Altug, Hatice ^{[1
,2
]}

机构：

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

[2] Boston Univ, Photon Ctr, Boston, MA 02215 USA

[3] Northeastern Univ, NSF Nanoscale Sci & Engn Ctr High Rate Nanomfg, Boston, MA 02215 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.3559620

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We introduce a nanoplasmonic platform merging multiple modalities for optical trapping, nanospectroscopy, and biosensing applications. Our platform is based on surface plasmon polariton driven monopole antenna arrays combining complementary strengths of localized and extended surface plasmons. Tailoring of spectrally narrow resonances lead to large index sensitivities (S similar to 675 nm/RIU) with record high figure of merits (FOM similar to 112.5). These monopole antennas supporting strong light localization with easily accessible near-field enhanced hotspots are suitable for vibrational nanospectroscopy and optical trapping. Strong optical forces (350 pN/W/mu m(2)) are shown at these hotspots enabling directional control with incident light polarization. (C) 2011 American Institute of Physics. [doi:10.1063/1.3559620]

引用

页数：3

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