Journal of Sensors / 2015 / Article / Fig 4

Research Article

Self-Referenced Plasmon Waveguide Resonance Sensor Using Different Waveguide Modes

Figure 4

(a) The angular reflectance spectra with different silica film thickness measuring the samples with different refractive indices. ((b), (c), and (d)) The bulk combined sensitivity factor (CSF), surface CSF, and figure of merit plotted against the silica film thickness. The gold films have the thickness of 55 nm. The refractive indices of the prism, gold, silica, and water are 1.515, 0.133 + 3.654, 1.46, and 1.33, respectively. The incident wavelength is 632.8 nm.

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