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Updated: Jan 27, 2026

Engineering Antiviral Agents via Surface Plasmon Resonance
Published on: June 14, 2022
Phase-shifted polarimetric surface plasmon resonance sensor using a liquid crystal retarder and a diverging beam
Abstract:
A simple phase-shifted polarimetric scheme to extract light polarization changes induced by the sample in surface plasmon resonance (SPR) sensors is presented. The proposed method is based on the conventional Kretschmann-Raether configuration in the angular diverging beam mode using a single wavelength and a variable liquid crystal retarder. An experimental demonstration was performed using different aqueous solutions of ethylene glycol showing a sensitivity of 118.7 deg/refractive-index-unit (RIU) and a detection limit of 1.03×10-7 RIU.
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