摘要
提出一种新型周期型长程表面等离子体激元共振(LRSPR)传感结构,用于高灵敏度传感器的设计。周期型LRSPR结构通过遗传算法对灵敏度(SI)和半高全宽(FWHM) 2个代价成本完成仿真。从仿真的结果可得:设计的结构的SI和FWHM在40层结构下达到全局最优。相对于传统表面等离子体激元共振(SPR)结构,设计的结构具有更高的SI和更小的FWHM,为高SI的LRSPR传感检测的设计提供一种新的结构思路。
A novel periodic long-range surface plasmon resonance( LRSPR) sensing structure is proposed for high sensitivity sensor design. Periodic LRSPR structure complete simulation on two cost functions which are sensitivity and full width at half maximum( FWHM) by genetic algorithm. The simulation results show that the sensitivity and FWHM of this structure reach the optimum under the 40-layer structure. Compared with the traditional surface plasmon resonance( SPR) structure,the designed structure has higher sensitivity and very narrow FWHM,which provides a structural idea for the design of high sensitivity sensor.
引文
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