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Indentation probe with optical fibre array‐based optical coherence tomography for material deformation

We present a new optomechanical probe for mechanical testing of soft matter. The probe consists of a micromachined cantilever equipped with an indenting sphere, and an array of 16 single‐mode optical fibres, which are connected to an optical coherence tomography (OCT) system that allows subsurface a...

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Autores principales: Marrese, Marica, Paardekam, E.J., Iannuzzi, Davide
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8248032/
https://www.ncbi.nlm.nih.gov/pubmed/33314150
http://dx.doi.org/10.1111/jmi.12994
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author Marrese, Marica
Paardekam, E.J.
Iannuzzi, Davide
author_facet Marrese, Marica
Paardekam, E.J.
Iannuzzi, Davide
author_sort Marrese, Marica
collection PubMed
description We present a new optomechanical probe for mechanical testing of soft matter. The probe consists of a micromachined cantilever equipped with an indenting sphere, and an array of 16 single‐mode optical fibres, which are connected to an optical coherence tomography (OCT) system that allows subsurface analysis of the sample during the indentation stroke. To test our device and its capability, we performed indentation on a PDMS‐based phantom. Our findings demonstrate that Common Path (CP)‐OCT via lensed optical fibres can be successfully combined with a microindentation sensor to visualise the phantom's deformation profile at different indentation depths and locations in real time. LAY DESCRIPTION: This work presents a new approach to simultaneously perform micro‐indentation experiments and OCT imaging. An optical fiber array‐based sensor is used to develop a new hybrid tool where micro‐indentation is combined with optical coherence tomography. The sensor is therefore capable of compressing a sample with a small force and simultaneously collecting OCT depth profiles underneath and around the indentation point. This method offers the opportunity to characterize the mechanical properties of soft materials and simultaneously visualize their deformation profile. The ability to integrate OCT imaging with indentation technology is promising for the non‐invasive and precise characterization of different soft materials.
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spelling pubmed-82480322021-07-02 Indentation probe with optical fibre array‐based optical coherence tomography for material deformation Marrese, Marica Paardekam, E.J. Iannuzzi, Davide J Microsc Original Articles We present a new optomechanical probe for mechanical testing of soft matter. The probe consists of a micromachined cantilever equipped with an indenting sphere, and an array of 16 single‐mode optical fibres, which are connected to an optical coherence tomography (OCT) system that allows subsurface analysis of the sample during the indentation stroke. To test our device and its capability, we performed indentation on a PDMS‐based phantom. Our findings demonstrate that Common Path (CP)‐OCT via lensed optical fibres can be successfully combined with a microindentation sensor to visualise the phantom's deformation profile at different indentation depths and locations in real time. LAY DESCRIPTION: This work presents a new approach to simultaneously perform micro‐indentation experiments and OCT imaging. An optical fiber array‐based sensor is used to develop a new hybrid tool where micro‐indentation is combined with optical coherence tomography. The sensor is therefore capable of compressing a sample with a small force and simultaneously collecting OCT depth profiles underneath and around the indentation point. This method offers the opportunity to characterize the mechanical properties of soft materials and simultaneously visualize their deformation profile. The ability to integrate OCT imaging with indentation technology is promising for the non‐invasive and precise characterization of different soft materials. John Wiley and Sons Inc. 2021-01-13 2021-06 /pmc/articles/PMC8248032/ /pubmed/33314150 http://dx.doi.org/10.1111/jmi.12994 Text en © 2020 The Authors. Journal of Microscopy published by John Wiley & Sons Ltd on behalf of Royal Microscopical Society https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Marrese, Marica
Paardekam, E.J.
Iannuzzi, Davide
Indentation probe with optical fibre array‐based optical coherence tomography for material deformation
title Indentation probe with optical fibre array‐based optical coherence tomography for material deformation
title_full Indentation probe with optical fibre array‐based optical coherence tomography for material deformation
title_fullStr Indentation probe with optical fibre array‐based optical coherence tomography for material deformation
title_full_unstemmed Indentation probe with optical fibre array‐based optical coherence tomography for material deformation
title_short Indentation probe with optical fibre array‐based optical coherence tomography for material deformation
title_sort indentation probe with optical fibre array‐based optical coherence tomography for material deformation
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8248032/
https://www.ncbi.nlm.nih.gov/pubmed/33314150
http://dx.doi.org/10.1111/jmi.12994
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