中国物理B ›› 2013, Vol. 22 ›› Issue (10): 104213-104213.doi: 10.1088/1674-1056/22/10/104213
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
张祖银, 王立娜, 胡海峰, 李康文, 马勋鹏, 宋国峰
Zhang Zu-Yin (张祖银), Wang Li-Na (王立娜), Hu Hai-Feng (胡海峰), Li Kang-Wen (李康文), Ma Xun-Peng (马勋鹏), Song Guo-Feng (宋国峰)
摘要: 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.
中图分类号: (Waveguides, couplers, and arrays)