High optical contrast nanoimprinted speckle patterns for digital image correlation analysis
For the characterization of the mechanical deformation of materials at microscopic length scales, image processing of a high-quality surface pattern was used. We imprinted speckle patterns onto a thin polymer film attached to the surface of flat and curved metal substrates using flexible molds and s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Micro and Nano Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590007222000612 |
| _version_ | 1818021510126764032 |
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| author | E.C. Kursun S. Supreeti K.G.F. Janssens H. Schift P. Spätig |
| author_facet | E.C. Kursun S. Supreeti K.G.F. Janssens H. Schift P. Spätig |
| author_sort | E.C. Kursun |
| collection | DOAJ |
| description | For the characterization of the mechanical deformation of materials at microscopic length scales, image processing of a high-quality surface pattern was used. We imprinted speckle patterns onto a thin polymer film attached to the surface of flat and curved metal substrates using flexible molds and soft-thermal nanoimprint lithography. High optical contrast was achieved by mixing black dye into the film generating high absorption in the elevated structures, and by adding titania nanoparticles as fillers to the recessed areas to induce diffuse scattering. For accessing resolution suitable to detect deformation at an individual grain level, the structure sizes were scaled down from 20 μm to 2 μm. For both structure sizes imaging was tested using a digital image correlation setup, that enables 3D imaging of samples with angles of up to 10° of inclination. |
| first_indexed | 2024-04-14T08:19:06Z |
| format | Article |
| id | doaj.art-385b021792534b849236e0ef43f434d4 |
| institution | Directory Open Access Journal |
| issn | 2590-0072 |
| language | English |
| last_indexed | 2024-04-14T08:19:06Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Micro and Nano Engineering |
| spelling | doaj.art-385b021792534b849236e0ef43f434d42022-12-22T02:04:16ZengElsevierMicro and Nano Engineering2590-00722022-11-0117100164High optical contrast nanoimprinted speckle patterns for digital image correlation analysisE.C. Kursun0S. Supreeti1K.G.F. Janssens2H. Schift3P. Spätig4Laboratory for Nuclear Materials, Paul Scherrer Institute, 5232 Villigen PSI, SwitzerlandTechnische Universität Ilmenau, Faculty of Electrical Engineering and Information Technology, Gustav-Kirchhoff-Str. 1, 98693 Ilmenau, GermanyLaboratory for Nuclear Materials, Paul Scherrer Institute, 5232 Villigen PSI, SwitzerlandLaboratory for Nano and Quantum Technologies, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland; Corresponding author.Laboratory for Nuclear Materials, Paul Scherrer Institute, 5232 Villigen PSI, SwitzerlandFor the characterization of the mechanical deformation of materials at microscopic length scales, image processing of a high-quality surface pattern was used. We imprinted speckle patterns onto a thin polymer film attached to the surface of flat and curved metal substrates using flexible molds and soft-thermal nanoimprint lithography. High optical contrast was achieved by mixing black dye into the film generating high absorption in the elevated structures, and by adding titania nanoparticles as fillers to the recessed areas to induce diffuse scattering. For accessing resolution suitable to detect deformation at an individual grain level, the structure sizes were scaled down from 20 μm to 2 μm. For both structure sizes imaging was tested using a digital image correlation setup, that enables 3D imaging of samples with angles of up to 10° of inclination.http://www.sciencedirect.com/science/article/pii/S2590007222000612Speckle patternNanoimprint lithographyDigital image correlationOptical contrastBlack-colored resistTitania nanoparticles |
| spellingShingle | E.C. Kursun S. Supreeti K.G.F. Janssens H. Schift P. Spätig High optical contrast nanoimprinted speckle patterns for digital image correlation analysis Micro and Nano Engineering Speckle pattern Nanoimprint lithography Digital image correlation Optical contrast Black-colored resist Titania nanoparticles |
| title | High optical contrast nanoimprinted speckle patterns for digital image correlation analysis |
| title_full | High optical contrast nanoimprinted speckle patterns for digital image correlation analysis |
| title_fullStr | High optical contrast nanoimprinted speckle patterns for digital image correlation analysis |
| title_full_unstemmed | High optical contrast nanoimprinted speckle patterns for digital image correlation analysis |
| title_short | High optical contrast nanoimprinted speckle patterns for digital image correlation analysis |
| title_sort | high optical contrast nanoimprinted speckle patterns for digital image correlation analysis |
| topic | Speckle pattern Nanoimprint lithography Digital image correlation Optical contrast Black-colored resist Titania nanoparticles |
| url | http://www.sciencedirect.com/science/article/pii/S2590007222000612 |
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