Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation

A simple method for reconstructing the spatial parameters of a laser beam, based on the transport-of-intensity equation, is presented. Registration of cross-section intensity distributions in several planes was carried out using a single CMOS camera. The processing of the experimental measurements w...

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Detalles Bibliográficos
Autores principales: Kovalev, Michael, Gritsenko, Iliya, Stsepuro, Nikita, Nosov, Pavel, Krasin, George, Kudryashov, Sergey
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914996/
https://www.ncbi.nlm.nih.gov/pubmed/35270915
http://dx.doi.org/10.3390/s22051765
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author Kovalev, Michael
Gritsenko, Iliya
Stsepuro, Nikita
Nosov, Pavel
Krasin, George
Kudryashov, Sergey
author_facet Kovalev, Michael
Gritsenko, Iliya
Stsepuro, Nikita
Nosov, Pavel
Krasin, George
Kudryashov, Sergey
author_sort Kovalev, Michael
collection PubMed
description A simple method for reconstructing the spatial parameters of a laser beam, based on the transport-of-intensity equation, is presented. Registration of cross-section intensity distributions in several planes was carried out using a single CMOS camera. The processing of the experimental measurements with the help of specialized software helped to reconstruct all of the spatial parameters, namely, the radius and position of the waist, Rayleigh length, angular divergence, quality parameter [Formula: see text] The method was compared with measurements made according to the international standard ISO 11146 and showed that the difference in the spatial parameters is 10% or less, which shows good agreement.
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spelling pubmed-89149962022-03-12 Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation Kovalev, Michael Gritsenko, Iliya Stsepuro, Nikita Nosov, Pavel Krasin, George Kudryashov, Sergey Sensors (Basel) Communication A simple method for reconstructing the spatial parameters of a laser beam, based on the transport-of-intensity equation, is presented. Registration of cross-section intensity distributions in several planes was carried out using a single CMOS camera. The processing of the experimental measurements with the help of specialized software helped to reconstruct all of the spatial parameters, namely, the radius and position of the waist, Rayleigh length, angular divergence, quality parameter [Formula: see text] The method was compared with measurements made according to the international standard ISO 11146 and showed that the difference in the spatial parameters is 10% or less, which shows good agreement. MDPI 2022-02-24 /pmc/articles/PMC8914996/ /pubmed/35270915 http://dx.doi.org/10.3390/s22051765 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Kovalev, Michael
Gritsenko, Iliya
Stsepuro, Nikita
Nosov, Pavel
Krasin, George
Kudryashov, Sergey
Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation
title Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation
title_full Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation
title_fullStr Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation
title_full_unstemmed Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation
title_short Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation
title_sort reconstructing the spatial parameters of a laser beam using the transport-of-intensity equation
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914996/
https://www.ncbi.nlm.nih.gov/pubmed/35270915
http://dx.doi.org/10.3390/s22051765
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