biostudies-literatureUnknown12(2)Jin XSpatial visualization of mode distribution of light scattering from plasmonic nanostructures is of vital importance for understanding the scattering mechanism and applications based on these plasmonic nanostructures. A long unanswered question in how the spatial information of scattered light from a single plasmonic nanostructure can be recovered in the far-field, under the constraints of the diffraction limit of the detection or imaging optical system. In this paper, we reported a theoretical model on retrieving local spatial information of scattered light by plasmonic nanostructures in a far-field optical imaging system. In the far-field parametric sin <i>δ</i> images, singularity points corresponding to near-field hot spots of the edge mode and the gap mode were resolved for gold ring aNanophotonics (Berlin, Germany)297-305https://www.ebi.ac.uk/biostudies/studies/S-EPMC11501192biostudies-literatureSub-wavelength visualization of near-field scattering mode of plasmonic nano-cavity in the far-field.PMC11501192Xiong JJin WJin XMarsh JHCheng WHou LLiu XSun MYe SNi BHou JJSheng TYu YfalseSub-wavelength visualization of near-field scattering mode of plasmonic nano-cavity in the far-field.Spatial visualization of mode distribution of light scattering from plasmonic nanostructures is of vital importance for understanding the scattering mechanism and applications based on these plasmonic nanostructures. A long unanswered question in how the spatial information of scattered light from a single plasmonic nanostructure can be recovered in the far-field, under the constraints of the diffraction limit of the detection or imaging optical system. In this paper, we reported a theoretical model on retrieving local spatial information of scattered light by plasmonic nanostructures in a far-field optical imaging system. In the far-field parametric sin <i>δ</i> images, singularity points corresponding to near-field hot spots of the edge mode and the gap mode were resolved for gold ring a2023-01-01T00:00:00Z2023 Jan2025-04-18T12:56:35.041Z2025-04-06T22:23:03.678ZS-EPMC115011923963485210.1515/nanoph-2022-0679