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A high figure of merit localized surface plasmon sensor based on a gold nanograting on the top of a gold planar film 下载免费PDF全文
We investigate the sensitivity and figure of merit (FOM) of a localized surface plasmon (LSP) sensor with gold nanograting on the top of planar metallic film. The sensitivity of the localized surface plasmon sensor is 317 nm/RIU, and the FOM is predicted to be above 8, which is very high for a localized surface plasmon sensor. By employing the rigorous coupled-wave analysis (RCWA) method, we analyze the distribution of the magnetic field and find that the sensing property of our proposed system is attributed to the interactions between the localized surface plasmon around the gold nanostrips and the surface plasmon polarition on the surface of the gold planar metallic film. These findings are important for developing high FOM localized surface plasmon sensors. 相似文献
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基于Nios Ⅱ的VGA彩条信号显示的实现 总被引:1,自引:0,他引:1
VGA作为一种标准的显示接口得到广泛的应用。依据VGA显示的原理,提出了一种基于NiosⅡ处理器的VGA时序彩条信号显示的实现方法。利用FPGA产生VGA时序信号,NiosⅡ处理器控制输出彩条的颜色,按键控制彩条的输出模式,将要显示信号的数据直接送到显示器,这样就加快了数据处理速度,节约了硬件成本。 相似文献