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
中科院分区:
文献类型:
--
作者:
Baker JE;Sriram R;Miller BL
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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