Microstructured optical beams with azimuthal polarization in stratified absorbent media

TL;DR

This paper introduces an analytical approach to generate highly non-paraxial, azimuthally polarized structured beams capable of maintaining specific intensity patterns through absorbing stratified media, useful for advanced optical applications.

Contribution

It presents a novel analytical method for controlling non-paraxial azimuthally polarized beams in absorbing layered media, enabling tailored intensity patterns despite adverse conditions.

Findings

Achieves control of beam intensity patterns in stratified media

Maintains beam properties despite absorption and reflections

Potential applications in trapping, sensing, and medical devices

Abstract

We present an analytical method to achieve highly non-paraxial, azimuthally polarized structured beams that, when propagating through an absorbing stratified media, can assume in the last semi-infinite layer approximately any desired longitudinal intensity pattern within spatial regions few times larger than the wavelength. The possibility of managing the properties of a highly non-paraxial beam under adverse conditions, such as multiple reflections in stratified structures and energy loss to the material media, may be of great importance in many different optical applications, like trapping and micro-manipulation, remote sensing, thin films, medical devices, medical therapies and so on.