All-polymer photonic crystal slab sensor

被引：34

作者：

Hermannsson, Petur G. ^{[1
]}

Sorensen, Kristian T. ^{[1
]}

Vannahme, Christoph ^{[1
]}

Smith, Cameron L. C. ^{[1
]}

Klein, Jan J. ^{[2
]}

Russew, Maria-Melanie ^{[2
]}

Gruetzner, Gabi ^{[2
]}

Kristensen, Anders ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Micro & Nanotechnol, DK-2800 Lyngby, Denmark

[2] Micro Resist Technol GmbH, DE-12555 Berlin, Germany

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 13期

关键词：

FABRICATION; RESONANCES; BIOSENSOR; DESIGN;

D O I：

10.1364/OE.23.016529

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An all-polymer photonic crystal slab sensor is presented, and shown to exhibit narrow resonant reflection with a FWHM of less than 1 nm and a sensitivity of 31 nm/RIU when sensing media with refractive indices around that of water. This results in a detection limit of 4.5 x 10(6) RIU when measured in conjunction with a spectrometer of 12 pm/pixel resolution. The device is a two-layer structure, composed of a low refractive index polymer with a periodically modulated surface height, covered with a smooth upper-surface high refractive index inorganic-organic hybrid polymer modified with ZrO2-based nanoparticles. Furthermore, it is fabricated using inexpensive vacuum-less techniques involving only UV nanoreplication and polymer spin-casting, and is thus well suited for single-use biological and refractive index sensing applications. (C) 2015 Optical Society of America

引用

页码：16529 / 16539

页数：11

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