期刊
LAB ON A CHIP
卷 15, 期 4, 页码 971-990出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4lc01208a
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资金
- NIH, via NIAID, NIBIB, and NIGMS [R01AI08077-01]
- NIAMS [T32AR007472]
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 hundreds 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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