Plasmonic polarization-contrast imaging of aqueous solutions using two-dimensional metallic surface relief gratings

Yevgeniy Mikhyeyev; Ribal Georges Sabat

doi:10.1117/12.2688449

2 April 2024 Plasmonic polarization-contrast imaging of aqueous solutions using two-dimensional metallic surface relief gratings

Yevgeniy Mikhyeyev, Ribal Georges Sabat

Author Affiliations +

Proceedings Volume 12930, Medical Imaging 2024: Clinical and Biomedical Imaging; 129301D (2024) https://doi.org/10.1117/12.2688449
Event: SPIE Medical Imaging, 2024, San Diego, California, United States

Conference Poster

Abstract

Surface Plasmon Resonance (SPR) microscopy was used for the imaging of inhomogeneous liquid mixtures and surface features. This study is based on the fact that the refractive index changes, resulting from the mixture inhomogeneity or surface imperfections, can be captured with a camera after a polarized light beam passes through a layer of the mixture and the plasmonic interface. Unlike conventional SPR sensing where data is averaged over the sensing area, the SPR microscopy technique produces an intensity variation in the SPR response at each pixel of the image, offering spatial mapping of any given sensing area. We use a technique that enables the removal of the background light entirely and only the SPR converted light can be detected where its intensity is dependent on the local refractive index.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Yevgeniy Mikhyeyev and Ribal Georges Sabat "Plasmonic polarization-contrast imaging of aqueous solutions using two-dimensional metallic surface relief gratings", Proc. SPIE 12930, Medical Imaging 2024: Clinical and Biomedical Imaging, 129301D (2 April 2024); https://doi.org/10.1117/12.2688449

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