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dc.contributor.authorPozo Molina, Antonio Manuel 
dc.contributor.authorFerrero, A.
dc.contributor.authorRubiño López, Antonio Manuel 
dc.contributor.authorCampos Acosta, Joaquín
dc.contributor.authorPons, Alicia
dc.date.accessioned2014-07-18T11:42:51Z
dc.date.available2014-07-18T11:42:51Z
dc.date.issued2006
dc.identifier.citationPozo, A.M.; et al. Improvements for determining the modulation transfer function of charge-coupled devices by the speckle method. Optics Express, 14(13): 5928-5936 (2006). [http://hdl.handle.net/10481/32717]es_ES
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/10481/32717
dc.description.abstractWe present and evaluate two corrections applicable in determining the modulation transfer function (MTF) of a charge-coupled device (CCD) by the speckle method that minimize its uncertainty: one for the low frequency region and another for the high frequency region. The correction at the low-spatial-frequency region enables attenuation of the high power-spectral-density values that arise from the field and CCD response non-uniformities. In the high-spatial-frequency region the results show that the distance between the CCD and the aperture is critical and significantly influences the MTF; a variation of 1 mm in the distance can cause a root-mean-square error in the MTF higher than 10%. We propose a simple correction that minimizes the experimental error committed in positioning the CCD and that diminishes the error to 0.43%.es_ES
dc.description.sponsorshipThe authors express their appreciation to the Ministerio de Ciencia y Tecnología for financing projects FIS2004-06465-C02-01 and FIS2004-06465-C02-02.es_ES
dc.language.isoenges_ES
dc.publisherOptical Society of Americaes_ES
dc.subjectCCDes_ES
dc.subjectCharge-coupled devicees_ES
dc.subjectModulation transfer functiones_ES
dc.subjectSpeckle imaginges_ES
dc.titleImprovements for determining the modulation transfer function of charge-coupled devices by the speckle methodes_ES
dc.typejournal articlees_ES
dc.rights.accessRightsopen accesses_ES
dc.identifier.doi10.1364/OE.14.005928


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