Talbot effect in nonparaxial self-accelerating beams with electromagnetically induced transparency

TL;DR

This paper explores the fractional Talbot effect in nonparaxial self-accelerating beams within an EIT atomic system, revealing how beam component differences influence interference and Talbot angles, with implications for optical technologies.

Contribution

First study to analyze the fractional Talbot effect in nonparaxial self-accelerating beams using EIT atomic configurations, highlighting the impact of beam component differences on interference.

Findings

Larger radial differences increase interference strength.

The Talbot angle decreases with greater radial differences.

The effect can be harnessed for optical imaging and computing.

Abstract

In this study, we report on the fractional Talbot effect of nonparaxial self-accelerating beams in a multilevel electromagnetically induced transparency (EIT) atomic configuration, which, to the best of our knowledge, is the first study on this subject. The Talbot effect originates from superposed eigenmodes of the Helmholtz equation and forms in the EIT window in the presence of both linear and cubic susceptibilities. The Talbot effect can be realized by appropriately selecting the coefficients of the beam components. Our results indicate that the larger the radial ifference between beam components, the stronger the interference between them, the smaller the Talbot angle is. The results of this study can be useful when studying optical imaging, optical measurements, and optical computing.