Light interference pattern measurements from automated low-cost Young’s double-slit experiments

Detalhes bibliográficos
Autor(a) principal: Oliveira Jr,C. G. de
Data de Publicação: 2020
Outros Autores: Gumiero,M. R., Coluci,V. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ensino de Física (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100618
Resumo: Young’s double-slit experiment is commonly used in undergraduate physics laboratory to show the wave nature of light. As an alternative to expensive commercial kits, here we present an automated, low–cost light intensity measurement setup that allows real-time visualization of the interference pattern. The light intensity is measured by a light dependent resistor placed on the head of a dot matrix printer. The head motion is controlled by an Arduino which also collects the data and send them to a computer. The interference pattern obtained by the setup is in agreement with a model that includes the degree of the coherence of the light source and the effective size related to the light collecting area of the resistor. The apparatus allows quantitative data analysis from the measured light patterns and is suitable to be used in undergraduate physics laboratories.
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spelling Light interference pattern measurements from automated low-cost Young’s double-slit experimentsdouble slitlight wavesArduinolow costlight interferenceYoung’s double-slit experiment is commonly used in undergraduate physics laboratory to show the wave nature of light. As an alternative to expensive commercial kits, here we present an automated, low–cost light intensity measurement setup that allows real-time visualization of the interference pattern. The light intensity is measured by a light dependent resistor placed on the head of a dot matrix printer. The head motion is controlled by an Arduino which also collects the data and send them to a computer. The interference pattern obtained by the setup is in agreement with a model that includes the degree of the coherence of the light source and the effective size related to the light collecting area of the resistor. The apparatus allows quantitative data analysis from the measured light patterns and is suitable to be used in undergraduate physics laboratories.Sociedade Brasileira de Física2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100618Revista Brasileira de Ensino de Física v.42 2020reponame:Revista Brasileira de Ensino de Física (Online)instname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590//1806-9126-rbef-2020-0006info:eu-repo/semantics/openAccessOliveira Jr,C. G. deGumiero,M. R.Coluci,V. R.eng2020-06-19T00:00:00Zoai:scielo:S1806-11172020000100618Revistahttp://www.sbfisica.org.br/rbef/https://old.scielo.br/oai/scielo-oai.php||marcio@sbfisica.org.br1806-91261806-1117opendoar:2020-06-19T00:00Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Light interference pattern measurements from automated low-cost Young’s double-slit experiments
title Light interference pattern measurements from automated low-cost Young’s double-slit experiments
spellingShingle Light interference pattern measurements from automated low-cost Young’s double-slit experiments
Oliveira Jr,C. G. de
double slit
light waves
Arduino
low cost
light interference
title_short Light interference pattern measurements from automated low-cost Young’s double-slit experiments
title_full Light interference pattern measurements from automated low-cost Young’s double-slit experiments
title_fullStr Light interference pattern measurements from automated low-cost Young’s double-slit experiments
title_full_unstemmed Light interference pattern measurements from automated low-cost Young’s double-slit experiments
title_sort Light interference pattern measurements from automated low-cost Young’s double-slit experiments
author Oliveira Jr,C. G. de
author_facet Oliveira Jr,C. G. de
Gumiero,M. R.
Coluci,V. R.
author_role author
author2 Gumiero,M. R.
Coluci,V. R.
author2_role author
author
dc.contributor.author.fl_str_mv Oliveira Jr,C. G. de
Gumiero,M. R.
Coluci,V. R.
dc.subject.por.fl_str_mv double slit
light waves
Arduino
low cost
light interference
topic double slit
light waves
Arduino
low cost
light interference
description Young’s double-slit experiment is commonly used in undergraduate physics laboratory to show the wave nature of light. As an alternative to expensive commercial kits, here we present an automated, low–cost light intensity measurement setup that allows real-time visualization of the interference pattern. The light intensity is measured by a light dependent resistor placed on the head of a dot matrix printer. The head motion is controlled by an Arduino which also collects the data and send them to a computer. The interference pattern obtained by the setup is in agreement with a model that includes the degree of the coherence of the light source and the effective size related to the light collecting area of the resistor. The apparatus allows quantitative data analysis from the measured light patterns and is suitable to be used in undergraduate physics laboratories.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100618
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172020000100618
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590//1806-9126-rbef-2020-0006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Revista Brasileira de Ensino de Física v.42 2020
reponame:Revista Brasileira de Ensino de Física (Online)
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Revista Brasileira de Ensino de Física (Online)
collection Revista Brasileira de Ensino de Física (Online)
repository.name.fl_str_mv Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv ||marcio@sbfisica.org.br
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