Defocused imaging-based quantification of plasmon-induced distortion of single emitter emission.

ABSTRACT: Optical properties of single emitters can be significantly improved through the interaction with plasmonic structures, leading to enhanced sensing and imaging capabilities. In turn, single emitters can act as sensitive probes of the local electromagnetic field surrounding plasmonic structures, furnishing fundamental insights into their physics and guiding the design of novel plasmonic devices. However, the interaction of emitters in the proximity to a plasmonic nanostructure causes distortion, which hinders precise estimation of position and polarization state and is one of the reasons why detection and quantification of molecular processes yet remain fundamentally challenging in this era of super-resolution. Here, we investigate axially defocused images of a single fluorescent emitter nea

SUBMITTER: Moon G 

PROVIDER: S-EPMC10505609 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature