Measurement of water content in heavy oil with cavity resonator

• DOI: 10.1016/j.rinp.2020.103192
• Publication Date: 2020-07-14T06:33:50Z
• Authors: Jun Zhu; Ge Wang
• Keywords: Fano resonance; Metal-insulator-metal; Optical cavity

The study of optical microcavity sensors in current micro electromechanical systems (MOEMS) devices is an important research direction this field. In study, a surface plasmon waveguide structure with MIM (Metal Insulator Metal), semi-circular resonator, and T-shaped resonator was examined. effects the coupling distance, geometrical size cavity its asymmetry, radius on Fano resonance spectrum were analyzed numerically. sensitivity refractive index sensor up to1066.67nm/RIU. detection water content heavy oil found that line shifted to short-wave as volume percentage contained increased. resolution sensor's could be low as2.05×10-9. proposed can overcome shortcomings common therefore has great application prospects chemical biological sensing.