Modulation effect of the atmosphere in a pyramid wave-front sensor

Detalhes bibliográficos
Autor(a) principal: Costa, Joana B.
Data de Publicação: 2005
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/3631
Resumo: The pyramid wave-front sensor in its original form works with a mechanical modulation that adapts the linear range of the sensor to seeing and sensing conditions. For adaptive optics systems working in an astronomical context, the way in which the aberrations produced by the atmospheric turbulence, which are not seen by the sensor owing to its limited temporal bandwidth, act as modulators is shown. These aberrations have the same effect of increasing the linear range and localizing the measurement as does mechanical modulation. The effect of residual wave-front aberrations is estimated for some example conditions of telescope diameter, system bandwidth, wind velocity, and Fried parameter.
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spelling Modulation effect of the atmosphere in a pyramid wave-front sensorAtmospheric and ocean opticsAtmospheric and ocean opticsAdaptive opticsWave-front sensingThe pyramid wave-front sensor in its original form works with a mechanical modulation that adapts the linear range of the sensor to seeing and sensing conditions. For adaptive optics systems working in an astronomical context, the way in which the aberrations produced by the atmospheric turbulence, which are not seen by the sensor owing to its limited temporal bandwidth, act as modulators is shown. These aberrations have the same effect of increasing the linear range and localizing the measurement as does mechanical modulation. The effect of residual wave-front aberrations is estimated for some example conditions of telescope diameter, system bandwidth, wind velocity, and Fried parameter.Optical Society of AmericaUniversidade do MinhoCosta, Joana B.20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/3631eng"Applied Optics". ISSN 0003-6935. 44:1 (2005) 60-66.0003-6935http://ao.osa.org/issue.cfminfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:41:31Zoai:repositorium.sdum.uminho.pt:1822/3631Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:38:30.953247Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Modulation effect of the atmosphere in a pyramid wave-front sensor
title Modulation effect of the atmosphere in a pyramid wave-front sensor
spellingShingle Modulation effect of the atmosphere in a pyramid wave-front sensor
Costa, Joana B.
Atmospheric and ocean optics
Atmospheric and ocean optics
Adaptive optics
Wave-front sensing
title_short Modulation effect of the atmosphere in a pyramid wave-front sensor
title_full Modulation effect of the atmosphere in a pyramid wave-front sensor
title_fullStr Modulation effect of the atmosphere in a pyramid wave-front sensor
title_full_unstemmed Modulation effect of the atmosphere in a pyramid wave-front sensor
title_sort Modulation effect of the atmosphere in a pyramid wave-front sensor
author Costa, Joana B.
author_facet Costa, Joana B.
author_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Costa, Joana B.
dc.subject.por.fl_str_mv Atmospheric and ocean optics
Atmospheric and ocean optics
Adaptive optics
Wave-front sensing
topic Atmospheric and ocean optics
Atmospheric and ocean optics
Adaptive optics
Wave-front sensing
description The pyramid wave-front sensor in its original form works with a mechanical modulation that adapts the linear range of the sensor to seeing and sensing conditions. For adaptive optics systems working in an astronomical context, the way in which the aberrations produced by the atmospheric turbulence, which are not seen by the sensor owing to its limited temporal bandwidth, act as modulators is shown. These aberrations have the same effect of increasing the linear range and localizing the measurement as does mechanical modulation. The effect of residual wave-front aberrations is estimated for some example conditions of telescope diameter, system bandwidth, wind velocity, and Fried parameter.
publishDate 2005
dc.date.none.fl_str_mv 2005
2005-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/3631
url http://hdl.handle.net/1822/3631
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Applied Optics". ISSN 0003-6935. 44:1 (2005) 60-66.
0003-6935
http://ao.osa.org/issue.cfm
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Optical Society of America
publisher.none.fl_str_mv Optical Society of America
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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