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dc.contributor.author
Alvarez, Natalia
dc.contributor.author
Vadnjal, Ana Laura
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Etchepareborda, Pablo Gonzalo
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Bianchetti, Arturo Abel
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Federico, Roque Alejandro
dc.date.available
2020-11-11T19:13:33Z
dc.date.issued
2019-02
dc.identifier.citation
Alvarez, Natalia; Vadnjal, Ana Laura; Etchepareborda, Pablo Gonzalo; Bianchetti, Arturo Abel; Federico, Roque Alejandro; Assessment of multifractal analysis in dynamic laser speckle signals using a spatial light modulator; Optical Society of America; Applied Optics; 58; 6; 2-2019; 1587-1595
dc.identifier.issn
0003-6935
dc.identifier.uri
http://hdl.handle.net/11336/118180
dc.description.abstract
We assess and discuss several technical aspects of the multifractal statistical analysis applied to time series of dynamic speckle intensity signals. Due to the complexity of this goal, we implemented an optical setup that mimics the light scattering effect from the illuminated object using a spatial light modulator. The multifractal spectrum of the obtained dynamic speckle intensity signals is quantified by utilizing a mathematical framework based on the decomposition of wavelet leaders’ functions. The propagated light that is scattered utilizing the spatial light modulator verifies the well-known first- and second-order statistics of the obtained speckle images and also a given temporal correlation function determined by a copula algorithm adding several classes of fractional Gaussian noises. To experimentally implement these issues, we load appropriate dynamic temporal phase screens in the spatial light modulator working on phase-only mode and guide the light propagation through an optical setup composed of a 4f correlator. Different types of statistical trends in the scaling properties as a function of frequency sampling, intensity signal discretization, mean size of speckle, temporal correlation length, and vanishing moments of the elected mother wavelet analysis are theoretically and experimentally tested and compared.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Optical Society of America
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SPATIAL LIGHT MODULATOR
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MULTIFRACTAL ANALYSIS
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WAVELET LEADERS
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SPECKLE
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Óptica
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Assessment of multifractal analysis in dynamic laser speckle signals using a spatial light modulator
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-11T12:30:31Z
dc.journal.volume
58
dc.journal.number
6
dc.journal.pagination
1587-1595
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Alvarez, Natalia. Instituto Nacional de Tecnología Industrial. Centro de Electrónica e Informática; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
dc.description.fil
Fil: Vadnjal, Ana Laura. Instituto Nacional de Tecnología Industrial. Centro de Electrónica e Informática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Etchepareborda, Pablo Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial. Centro de Electrónica e Informática; Argentina
dc.description.fil
Fil: Bianchetti, Arturo Abel. Instituto Nacional de Tecnología Industrial. Centro de Electrónica e Informática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Federico, Roque Alejandro. Instituto Nacional de Tecnología Industrial. Centro de Electrónica e Informática; Argentina
dc.journal.title
Applied Optics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.osapublishing.org/abstract.cfm?URI=ao-58-6-1587
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1364/AO.58.001587
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