Plasmonic photonic-crystal slab as an ultrasensitive and robust optical biosensor

Plasmonic photonic-crystal slab as an ultrasensitive and robust optical biosensor
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等离激元光子晶体板作为超灵敏且稳定的光学生物传感器

DOI:
10.1117/12.2003253
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发表时间:
2013
期刊:
SPIE Proceedings
影响因子:
--
通讯作者:
and M.Inoue
and M.Inoue
中科院分区:
--
文献类型:
--
作者:
Baryshev;A.M.Merzlikin;and M.Inoue

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通过贵金属薄膜终止的一维光子晶体(等离子体光子晶体板)已在理论上分析了其在分析物介电常数变化和模拟分子结合事件条件下的光学响应。我们研究了板的传感性能,并表明它可以容忍探测条件和板的结构参数的变化。因此,与传统的表面等离子体和布洛赫表面波传感器相比,所考虑的传感器表现出增强的灵敏度和良好的鲁棒性。
A one-dimensional photonic crystal with termination by a noble metal film–a plasmonic photonic-crystal slab–has been theoretically analyzed for its optical response at a variation of the dielectric permittivity of an analyte and at a condition simulating the molecular binding event. We investigate sensing performance by the slab and show that it is tolerant to the variation of probing conditions and the slab's structural parameters. As a consequence, the considered sensor exhibited an enhanced sensitivity and a good robustness in comparison with conventional surface-plasmon and Bloch surface wave sensors.
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