Enhancing axial localization with wavefront control.

• DOI: 10.48550/arxiv.2310.19908
• Publication Date: 2023-12-12
• Authors: M. Peterek; M. Paúr; M. Vítek; D. Koutný; B. Stoklasa; L. Motka; Z. Hradil; J. Rehacek; L. L. Sánchez-Soto
• Keywords: Quantum Physics; 0303 health sciences; 03 medical and health sciences; FOS: Physical sciences; Quantum Physics (quant-ph); Physics - Optics; Optics (physics.optics)

Enhancing the ability to resolve axial details is crucial in three-dimensional optical imaging. We provide experimental evidence showcasing the ultimate precision achievable in axial localization using vortex beams. For Laguerre-Gauss (LG) beams, this remarkable limit can be attained with just a single intensity scan. This proof-of-principle demonstrates that microscopy techniques based on LG vortex beams can potentially benefit from the introduced quantum-inspired superresolution protocol.