Evanescent Airy beams

TL;DR

This paper introduces the concept of evanescent Airy beams, analyzing their structure, spectral composition, and behavior during refraction at interfaces, highlighting their unique evanescent properties.

Contribution

It presents the novel idea of evanescent Airy beams, detailing their structure, spectral decomposition, and transmission characteristics, which were not previously explored.

Findings

Evanescent Airy beams have an initial Airy profile with a spectral decomposition of only evanescent waves.

The study analyzes how evanescent Airy beams refract through interfaces.

The transmitted evanescent Airy beam maintains its unique properties during refraction.

Abstract

In this Letter we propose the concept of the evanescent Airy beam. We analyze the structure of the ideal evanescent Airy beam, which initial profile has the Airy form, while the spectral decomposition consists of only evanescent partial waves. Also, we discuss the refraction of the Airy beam through the interface and investigate the field of the transmitted evanescent Airy beam.