A. Shalabney and I. Abdulhalim Prism dispersion effects in near-guided-wave surface plasmon resonance sensors Annalen der Physik 524
Refractive index dispersion causes the light line to curve. As a result it is shown that when the prism is dispersive, an additional dip in the spectral response of Surface Plasmon Resonance (SPR) sensors is observed in the Kretschmann-Raether configuration. Since the new dip evolves in the infrared region, it exhibits a high sensitivity to the analyte refractive index changes and the mode penetrates deeper into the analyte.
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