Super-resolution microscopy via fluctuation-enhanced spatial mode demultiplexing

TL;DR

This paper presents a superresolution microscopy method that leverages emitter blinking and temporal fluctuations to improve image precision and simplify measurements, combining SPADE with fluctuation analysis.

Contribution

It introduces a novel superresolution technique that integrates spatial mode demultiplexing with emitter blinking, utilizing temporal cumulants to enhance accuracy and reduce measurement complexity.

Findings

Temporal fluctuations improve SPADE imaging precision.

Fluctuations enable replacing SPADE with simpler image inversion interferometry.

The method achieves higher resolution with less complex measurement setup.

Abstract

We introduce a superresolution technique that combines spatial mode demultiplexing (SPADE) with emitter blinking. We show that temporal fluctuations not only enhance the precision of SPADE imaging, but also drastically simplify the measurement required to recover full object information -- in the presence of fluctuations, SPADE can be replaced by the much simpler image inversion interferometry. Both gains are enabled by exploiting temporal cumulants of the detected signal.