Determination of a CO2 laser beam profile using a Smartphone camera (2024)
- Authors:
- USP affiliated authors: MENEGATTI, CARLOS RENATO - EEL ; PAULA, GABRIEL DE TOLEDO - EEL ; RIBEIRO, NICOLAS - EEL
- Unidade: EEL
- DOI: 10.1590/1806-9126-rbef-2023-0370
- Assunto: FEIXES
- Keywords: CO2 laser; Smartphone camera; beam profile; knife-edge
- Agências de fomento:
- Language: Inglês
- Abstract: Lasers find extensive applications across a spectrum from academic research to industrial use. In various instances, understanding the intensity profile of laser light is of paramount importance, specifically how its intensity changes along its propagation path. In this study, we introduce an economical and alternative technique for determining the waist of a Gaussian laser beam, leveraging the capabilities of a Smartphone camera. Our methodology entails directing a CO2 laser onto a thermochromic liquid crystal sheet for specific exposure duration, resulting in a color pattern that evolves over time. This evolving pattern is captured by a Smartphone camera, and selected frames from the recording are processed and analyzed to quantify the beam’s waist, denoted as . Our measurements are compared with those obtained through the traditional knife-edge method, demonstrating a substantial degree of agreement. Furthermore, by interpolating the waists calculated through our approach, we were able to ascertain the beam waist at the focus and the focal point of a converging lens, yielding results consistent with the reference method. Our findings underscore the viability of this approach as a cost-effective alternative for characterizing Gaussian beams, with potential applications in optics, laser technology, and studies related to light propagation.
- Imprenta:
- Source:
- Título: Revista brasileira de ensino de física (online)
- ISSN: 1806-9126
- Volume/Número/Paginação/Ano: v.46, p.1-6, art. n. e20230370, 2024
- Status:
- Artigo publicado em periódico de acesso aberto (Gold Open Access)
- Versão do Documento:
- Versão publicada (Published version)
- Acessar versão aberta:
-
ABNT
PAULA, Gabriel de Toledo et al. Determination of a CO2 laser beam profile using a Smartphone camera. Revista brasileira de ensino de física (online), v. 46, n. art. e20230370, p. 1-6, 2024Tradução . . Disponível em: https://doi.org/10.1590/1806-9126-rbef-2023-0370. Acesso em: 01 abr. 2026. -
APA
Paula, G. de T., Ribeiro, N., Cabral, J. de S., & Menegatti, C. R. (2024). Determination of a CO2 laser beam profile using a Smartphone camera. Revista brasileira de ensino de física (online), 46( art. e20230370), 1-6. doi:10.1590/1806-9126-rbef-2023-0370 -
NLM
Paula G de T, Ribeiro N, Cabral J de S, Menegatti CR. Determination of a CO2 laser beam profile using a Smartphone camera [Internet]. Revista brasileira de ensino de física (online). 2024 ;46( art. e20230370): 1-6.[citado 2026 abr. 01 ] Available from: https://doi.org/10.1590/1806-9126-rbef-2023-0370 -
Vancouver
Paula G de T, Ribeiro N, Cabral J de S, Menegatti CR. Determination of a CO2 laser beam profile using a Smartphone camera [Internet]. Revista brasileira de ensino de física (online). 2024 ;46( art. e20230370): 1-6.[citado 2026 abr. 01 ] Available from: https://doi.org/10.1590/1806-9126-rbef-2023-0370 - Recent advances and future trends in LIBS applications to agricultural materials and their food derivatives: an overview of developments in the last decade (2010 - 2019). Part I. Soils and fertilizers
- Metronidazole-loaded gold nanoparticles in natural rubber latex as a potential wound dressing
- Differentiation of latex biomembrane with collagen and non-collagen using laser induced breakdown spectroscopy
- Identification of adulterants in açaí pulp samples using laser-induced fluorescence spectroscopy combined with linear discriminant analysis (LDA) method: A demonstration of the potential applicability of the technique
- Aplicação da técnica libs para determinação multielementar de elementos potencialmente tóxicos em amostras de percolado líquido
- Dissolved organic matter in bovine slaughterhouse wastewater using fluorescence spectroscopy associated with CP/PARAFAC and PCA methods
- Recent advances and future trends in LIBS applications to agricultural materials and their food derivatives: An overview of developments in the last decade (2010-2019). Part II. Crop plants and their food derivatives
- Laser-induced breakdown spectroscopy in cementitious materials: A chronological review of cement and concrete from the last 20 years
- Armadilha de dipolo para átomos e moléculas
- Construção de uma armadilha de dipolo com laser de C'O IND.2'
Informações sobre a disponibilidade de versões do artigo em acesso aberto coletadas automaticamente via oaDOI API (Unpaywall).
Por se tratar de integração com serviço externo, podem existir diferentes versões do trabalho (como preprints ou postprints), que podem diferir da versão publicada.
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
