Two-dimensional photonic crystals for sensitive microscale chemical and biochemical sensing.

Two-dimensional photonic crystals for sensitive microscale chemical and biochemical sensing.
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DOI:
10.1039/c4lc01208a
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发表时间:
2015-02-21
期刊:
影响因子:
6.1
通讯作者:
Miller BL
Miller BL
中科院分区:
工程技术1区
文献类型:
--
作者:
Baker JE;Sriram R;Miller BL

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光子晶体是一种能够对小体积空间的折射率变化做出反应的光学器件,是一种新兴的无标签化学和生物传感器。本文综述了一类光子晶体,其中光被限制在亚波长厚度的平面材料层中。这些设备很小(大约几十到100微米的平方),适合集成到芯片上的实验室系统中,并且理论上可以提供卓越的灵敏度。我们介绍了二维光子晶体传感器的定义特征和基本工作,描述了其基本设计几何的变化,并总结了化学和生物传感实验的检测结果。
Photonic crystals – optical devices able to respond to changes in the refractive index of a small volume of space – are an emerging class of label-free chemical-and bio-sensors. This review focuses on one class of photonic crystal, in which light is confined to a patterned planar material layer of sub-wavelength thickness. These devices are small (on the order of tens to 100s of microns square), suitable for incorporation into lab-on-a-chip systems, and in theory can provide exceptional sensitivity. We introduce the defining characteristics and basic operation of two-dimensional photonic crystal sensors, describe variations of their basic design geometry, and summarize reported detection results from chemical and biological sensing experiments.
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