配分額 *注記 |
5,720千円 (直接経費: 4,400千円、間接経費: 1,320千円)
2014年度: 650千円 (直接経費: 500千円、間接経費: 150千円)
2013年度: 2,210千円 (直接経費: 1,700千円、間接経費: 510千円)
2012年度: 2,860千円 (直接経費: 2,200千円、間接経費: 660千円)
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研究概要 |
Biosensing by plasmonic photonic-crystal slab. The Bloch surface wave resonance (SWR) was visualized with the aid of plasmon absorption in a dielectric/metal/dielectric sandwich terminating a one-dimensional photonic crystal (PhC). An SWR peak in calculated spectra of such a plasmonic photonic crystal (PPhC) slab comprising a noble or base metal layer was demonstrated to be sensitive to a negligible variation of refractive index of a medium adjoining to the slab. The considered structure of PPhC slabs can be of practical importance because the metal layer is protected by a capping dielectric layer from contact with analytes and, consequently, from deterioration. It is found that, in case of PPhC slabs, gold (the key element of the surface plasmon resonance-based biosensors) can be replaced by other metals. My works show that the PPhC-based sensors can be low-cost, reusable and robust sensors having a sensitivity surpassing that of the known optical sensors.
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