Engineering a Better Light Sheet in an Axicon-based System Using a Flattened Gaussian Beam of Low Order

Overview

Journal J Biophotonics

Date 2022 Feb 1

PMID 35104051

Authors

Saiedeh Saghafi

Klaus Becker

Franco Gori

Massih Foroughipour

Christine Bollwein

Meraaj Foroughipour

Katja Steiger

Wilko Weichert

Hans-Ulrich Dodt

Affiliations

Soon will be listed here.

Abstract

Lasers are fundamental tools in research and development. The shape of an incident laser beam directly affects the results, when it propagates through complex structured meso-aspheric optical elements. In conic-based systems utilizing elements such as axicons, the impact of secondary lobes is mostly overlooked, although the intensity distributions at the central spot and the side-lobes directly affect the beam properties. We investigate the interaction of two axicons (160° and 170°) with incident beams approximated by Gaussian, high-order Flattened-Gaussian, and low-order Flattened-Gaussian functions. We demonstrate that replacing an incident Gaussian beam with a low-order Flattened-Gaussian beam reduces the secondary lobes and significantly improves the uniformity of the intensity profile. We practically applied this effect in engineering a conic-aspheric-based static light-sheet microscope producing markedly improved results.

Citing Articles

Engineering a better light sheet in an axicon-based system using a flattened Gaussian beam of low order.

Saghafi S, Becker K, Gori F, Foroughipour M, Bollwein C, Foroughipour M J Biophotonics. 2022; 15(6):e202100342.

PMID: 35104051 PMC: 11497253. DOI: 10.1002/jbio.202100342.

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