Air-Gap Interrogation of Surface Plasmon Resonance in Otto Configuration
Por:
Lee, Y, Kim, J, Sim, S, Llamas-Garro, I, Kim, J
Publicada:
1 ago 2021
Resumen:
In this study, a micromachined chip in Otto configuration with multiple air-gaps (1.86 mu m, 2.42 mu m, 3.01 mu m, 3.43 mu m) was fabricated, and the resonance characteristics for each air-gap was measured with a 980 nm laser source. To verify the variability of the reflectance characteristics of the Otto configuration and its applicability to multiple gas detection, the air-gap between the prism and metal film was adjusted by using a commercial piezoactuator. We experimentally verified that the SPR characteristics of the Otto chip configuration have a dependence on the air-gap distance and wavelength of the incident light. When a light source having a wavelength of 977 nm is used, the minimum reflectance becomes 0.22 when the displacement of the piezoactuator is about 9.3 mu m.
Filiaciones:
Lee, Y:
Jeonbuk Natl Univ, Sch Elect & Informat Engn, Jeonju 54896, South Korea
Kim, J:
Jeonbuk Natl Univ, Sch Elect & Informat Engn, Jeonju 54896, South Korea
Sim, S:
Korea Inst Ind Technol, Ansan 15588, South Korea
Llamas-Garro, I:
CTTC CERCA, Ctr Tecnol Telecomunicac Catalunya, Castelldefels 08860, Spain
Kim, J:
Jeonbuk Natl Univ, Sch Elect & Informat Engn, Jeonju 54896, South Korea
School of Electronic and Information Engineering, Jeonbuk National University, Jeonju, 54896, South Korea
Korea Institute of Industrial Technology, Ansan, 15588, South Korea
Centre Tecnològic de Telecomunicacions de Catalunya, CTTC/CERCA, Castelldefels, 08860, Spain
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