Plasmonic solutions for all-optical, real-time image processing and phase contrast imaging

Ann Roberts

doi:10.1117/12.2632867

13 October 2022 Plasmonic solutions for all-optical, real-time image processing and phase contrast imaging

Ann Roberts

Proceedings Volume PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX; PC1219706 (2022) https://doi.org/10.1117/12.2632867
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

Two all-optical, real-time approaches utilizing plasmonic metasurfaces for manipulating images to enhance phase contrast are presented here. One employs the phenomenon of directional light ‘routing’ in a waveguiding layer while the other relies on the inherent angular sensitivity of plasmonic resonant waveguide gratings. We show that by introducing an asymmetry into the optical transfer function by either controlling the coupling into the waveguide using circularly polarized light, or tilting the device relative to the optical axis produces pseudo-three-dimensional phase contrast images of unstained biological cells and wavefront phase variations.

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Citation Download Citation

Ann Roberts "Plasmonic solutions for all-optical, real-time image processing and phase contrast imaging", Proc. SPIE PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, PC1219706 (13 October 2022); https://doi.org/10.1117/12.2632867

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KEYWORDS

Plasmonics

Phase contrast

Real time image processing

Adaptive optics

Imaging systems

Optical components

Optical imaging

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