Experimental demonstration of Tessellation Structured Illumination Microscopy

TL;DR

This paper introduces Tessellation Structured Illumination Microscopy (TSIM), a novel framework that improves super-resolution imaging by reducing reconstruction artifacts and enhancing temporal resolution without sacrificing spatial resolution.

Contribution

TSIM presents a new image reconstruction paradigm that overcomes limitations of traditional SIM, especially in extended-SIM applications.

Findings

TSIM reduces reconstruction artifacts in super-resolution imaging.

TSIM enhances temporal resolution in SIM.

TSIM maintains high spatial resolution in extended-SIM.

Abstract

Structured Illumination Microscopy (SIM) overcomes the optical diffraction limit by folding high-frequency components into the baseband of the optical system, where they can be extracted and then repositioned to their original location in the Fourier domain. Although SIM is considered superior to other super-resolution (SR) methods in terms of compatibility with live cell imaging and optical setup simplicity, its reliance on image reconstruction restricts its temporal resolution and may introduce distortions in the super-resolved image. These inherent drawbacks are exacerbated in extended-SIM im-plementations, where spatial resolution surpasses the diffraction limit by more than 2-fold. Here, we present and demon-strate the Tessellation Structured Illumination Microscopy (TSIM) framework, which introduces a revived image recon-struction paradigm. With TSIM both the temporal resolution limit and the reconstruction artifacts that impact extended-SIM, are alleviated, without compromising the achievable spatial resolution.