Photorefractive moiré-like patterns for the multifringe projection method in Fourier transform profilometry
In the present paper, the method of simultaneous moiré-like fringe pattern projection for Fourier transform profilometry is described. The photorefractive holographic interferometric process produces controlled moiré-like patterns with two or more different variation directions. Each low spatial fre...
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| Veröffentlicht in: | Applied Optics 2016-02, Vol.55 (5), p.1048-1053 |
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| creator | de Oliveira, M E de Oliveira, G N de Souza, J C dos Santos, P A M |
| description | In the present paper, the method of simultaneous moiré-like fringe pattern projection for Fourier transform profilometry is described. The photorefractive holographic interferometric process produces controlled moiré-like patterns with two or more different variation directions. Each low spatial frequency fringe pattern is experimentally obtained as a result of the superposition of two high spatial frequency sinusoidal gratings, with slightly different pitches, for each fringe variation direction. These dynamic moiré-like patterns are induced due to an optical holographic beating of the sinusoidal induced gratings in the volume of the photorefractive Bi₁₂TiO₂₀ (BTO) crystal sample used as dynamic holographic medium. Two or more moiré-like fringe patterns, with at least two different variation directions, simultaneously (or not), are projected onto the object surface. Thus, this is the 2D fringe projection stage of our proposed Fourier transform procedure to determine the profile of a simple object. |
| doi_str_mv | 10.1364/AO.55.001048 |
| format | Article |
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The photorefractive holographic interferometric process produces controlled moiré-like patterns with two or more different variation directions. Each low spatial frequency fringe pattern is experimentally obtained as a result of the superposition of two high spatial frequency sinusoidal gratings, with slightly different pitches, for each fringe variation direction. These dynamic moiré-like patterns are induced due to an optical holographic beating of the sinusoidal induced gratings in the volume of the photorefractive Bi₁₂TiO₂₀ (BTO) crystal sample used as dynamic holographic medium. Two or more moiré-like fringe patterns, with at least two different variation directions, simultaneously (or not), are projected onto the object surface. 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Thus, this is the 2D fringe projection stage of our proposed Fourier transform procedure to determine the profile of a simple object.</description><subject>Crystals</subject><subject>Diffraction gratings</subject><subject>Dynamics</subject><subject>Fourier transforms</subject><subject>Gratings (spectra)</subject><subject>Photorefractivity</subject><subject>Projection</subject><subject>Titanium dioxide</subject><issn>0003-6935</issn><issn>1559-128X</issn><issn>2155-3165</issn><issn>1539-4522</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqFkbtOxDAQRS0EguXRUaOUFGQZP8ZxyhXiJSEtBdRRcGzWkMRgO0h8Et_Bj2G0QEs1Gt1z70hzCTmkMKdcitPFco44B6Ag1AaZMYpYcipxk8wAgJey5rhDdmN8yhuKutomO0zWIHklZqS_Xfnkg7Gh1cm9mWLwLnx-lL17NsVLm5IJYyysD0VaZXHqk7PBjY9ZDP7JZI8fi8Gkle8KNxYXfgrOZDi0Y8yu4RuzrvcZCe_7ZMu2fTQHP3OP3F-c351dlTfLy-uzxU2pOROpVFJoxrGrhaqxYlYK1AaFQKuZrlltO5DG4oMGEJ0yiMgUaloJBS0KZfkeOV7n5uOvk4mpGVzUpu_b0fgpNlQBIFDB8H-0korKGjlk9GSN6uBjzC9rXoIb2vDeUGi-q2gWywaxWVeR8aOf5OlhMN0f_Pt7_gW0DoWD</recordid><startdate>20160210</startdate><enddate>20160210</enddate><creator>de Oliveira, M E</creator><creator>de Oliveira, G N</creator><creator>de Souza, J C</creator><creator>dos Santos, P A M</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20160210</creationdate><title>Photorefractive moiré-like patterns for the multifringe projection method in Fourier transform profilometry</title><author>de Oliveira, M E ; de Oliveira, G N ; de Souza, J C ; dos Santos, P A M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c324t-864c235d9489572f645ce5445fc2c929fd06ef5bc004d8e555285c17480a548f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Crystals</topic><topic>Diffraction gratings</topic><topic>Dynamics</topic><topic>Fourier transforms</topic><topic>Gratings (spectra)</topic><topic>Photorefractivity</topic><topic>Projection</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Oliveira, M E</creatorcontrib><creatorcontrib>de Oliveira, G N</creatorcontrib><creatorcontrib>de Souza, J C</creatorcontrib><creatorcontrib>dos Santos, P A M</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied Optics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Oliveira, M E</au><au>de Oliveira, G N</au><au>de Souza, J C</au><au>dos Santos, P A M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photorefractive moiré-like patterns for the multifringe projection method in Fourier transform profilometry</atitle><jtitle>Applied Optics</jtitle><addtitle>Appl Opt</addtitle><date>2016-02-10</date><risdate>2016</risdate><volume>55</volume><issue>5</issue><spage>1048</spage><epage>1053</epage><pages>1048-1053</pages><issn>0003-6935</issn><issn>1559-128X</issn><eissn>2155-3165</eissn><eissn>1539-4522</eissn><abstract>In the present paper, the method of simultaneous moiré-like fringe pattern projection for Fourier transform profilometry is described. The photorefractive holographic interferometric process produces controlled moiré-like patterns with two or more different variation directions. Each low spatial frequency fringe pattern is experimentally obtained as a result of the superposition of two high spatial frequency sinusoidal gratings, with slightly different pitches, for each fringe variation direction. These dynamic moiré-like patterns are induced due to an optical holographic beating of the sinusoidal induced gratings in the volume of the photorefractive Bi₁₂TiO₂₀ (BTO) crystal sample used as dynamic holographic medium. Two or more moiré-like fringe patterns, with at least two different variation directions, simultaneously (or not), are projected onto the object surface. 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| source | Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | Crystals Diffraction gratings Dynamics Fourier transforms Gratings (spectra) Photorefractivity Projection Titanium dioxide |
| title | Photorefractive moiré-like patterns for the multifringe projection method in Fourier transform profilometry |
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