Interrogation trajectory optimisation for Fabry-Perot based photoacoustic tomography

TL;DR

This paper introduces an optimized interrogation trajectory method for Fabry-Perot based photoacoustic tomography that enhances imaging speed and simplifies system use, overcoming hardware and spectral tuning limitations.

Contribution

It proposes a novel trajectory optimization approach that improves FP-PAT imaging speed regardless of laser type or FP quality, addressing key practical challenges.

Findings

Increased imaging speed in FP-PAT systems.

Reduced impact of hardware limitations on imaging performance.

Simplified operation of FP-PAT systems.

Abstract

Fabry-P\'erot based photoacoustic tomography (FP-PAT) is a promising all-optical imaging modality for a wide range of preclinical and clinical applications. However, there exist several challenges in routinely applying FP-PAT in time-critical experiments. Among those, the need for spectral tuning of the laser between each scan position can severely limit the effective imaging speed. Here, we present an interrogation trajectory optimization approach which allows to increase the overall speed in a way that is independent of the type of interrogation laser used as well as the FP quality. Our approach provides a way to tackle speed degradation caused by hardware limitations and simplify the use of FP-PAT systems.