磁性フォトニック結晶の形成と超高感度バイオセンシング、超高速光スイチへの応用

等离子体光子晶体板的生物传感。利用等离激元吸收在终止一维光子晶体（PhC）的介电/金属/介电夹层中观察了布洛赫表面波共振（SWR）。这种等离子体光子晶体（PPhC）板的计算光谱中的SWR峰，包括贵金属或贱金属层，被证明对与板相邻的介质的折射率变化非常敏感，可以忽略不计。所考虑的PPhC板的结构可能具有实际重要性，因为金属层由覆盖介电层保护，不与分析物接触，从而防止变质。研究发现，在PPhC板的情况下，金（基于表面等离子体共振的生物传感器的关键元素）可以被其他金属取代。我的工作表明，基于pphc的传感器可以是低成本，可重复使用和强大的传感器，具有超过已知光学传感器的灵敏度。

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.