Self-healing in scaled propagation invariant beams

TL;DR

This paper investigates the self-healing properties of scaled propagation invariant beams through numerical and experimental methods, introducing a new figure of merit to quantify the effect.

Contribution

It introduces a semi-analytical signal to noise intensity ratio to evaluate self-healing in scaled propagation invariant beams.

Findings

Self-healing effect is demonstrated both numerically and experimentally.

The signal to noise intensity ratio effectively quantifies self-healing.

Quantitative measures like RMS deviation and similarity function are used for evaluation.

Abstract

We analyze and demonstrate, numerically and experimentally, the self-healing effect in scaled propagation invariant beams, subject to opaque obstructions.We introduce the signal to noise intensity ratio, a semi-analytical figure of merit, explicitly dependent on the features of the beams and the obstructions applied to them. The effect is quantitatively evaluated employing the Root Mean Square deviation and the similarity function.