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Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics

Conoscopic interferometry is a promising detection technique for ultrafast acoustics. By focusing a probe beam through a birefringent crystal before passing it through a polarizer, conoscopic interferences sculpt the spatial profile of the beam. The use of these patterns for acoustic wave detection...

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Detalles Bibliográficos
Autores principales: Robin, Martin, Guis, Ruben, Arabul, Mustafa Umit, Zhou, Zili, Pandey, Nitesh, Verbiest, Gerard J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10023987/
https://www.ncbi.nlm.nih.gov/pubmed/36942302
http://dx.doi.org/10.1016/j.pacs.2023.100470
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author Robin, Martin
Guis, Ruben
Arabul, Mustafa Umit
Zhou, Zili
Pandey, Nitesh
Verbiest, Gerard J.
author_facet Robin, Martin
Guis, Ruben
Arabul, Mustafa Umit
Zhou, Zili
Pandey, Nitesh
Verbiest, Gerard J.
author_sort Robin, Martin
collection PubMed
description Conoscopic interferometry is a promising detection technique for ultrafast acoustics. By focusing a probe beam through a birefringent crystal before passing it through a polarizer, conoscopic interferences sculpt the spatial profile of the beam. The use of these patterns for acoustic wave detection revealed a higher detection sensitivity over existing techniques, such as reflectometry and beam distortion detection. However, the physical origin of the increased sensitivity is unknown. In this work, we present a model, describing the sensitivity behavior of conoscopic interferometry with respect to the quarter-wave plate orientation and the diaphragm aperture, which is validated experimentally. Using the model, we optimize the detection sensitivity of conoscopic interferometry. We obtain a maximal sensitivity of detection when placing the diaphragm edge on the dark fringes of the conoscopic interference patterns. In the configurations studied in this work, conoscopic interferometry can be 18 dB more sensitive to acoustic waves than beam distortion detection.
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spelling pubmed-100239872023-03-19 Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics Robin, Martin Guis, Ruben Arabul, Mustafa Umit Zhou, Zili Pandey, Nitesh Verbiest, Gerard J. Photoacoustics Research Article Conoscopic interferometry is a promising detection technique for ultrafast acoustics. By focusing a probe beam through a birefringent crystal before passing it through a polarizer, conoscopic interferences sculpt the spatial profile of the beam. The use of these patterns for acoustic wave detection revealed a higher detection sensitivity over existing techniques, such as reflectometry and beam distortion detection. However, the physical origin of the increased sensitivity is unknown. In this work, we present a model, describing the sensitivity behavior of conoscopic interferometry with respect to the quarter-wave plate orientation and the diaphragm aperture, which is validated experimentally. Using the model, we optimize the detection sensitivity of conoscopic interferometry. We obtain a maximal sensitivity of detection when placing the diaphragm edge on the dark fringes of the conoscopic interference patterns. In the configurations studied in this work, conoscopic interferometry can be 18 dB more sensitive to acoustic waves than beam distortion detection. Elsevier 2023-03-04 /pmc/articles/PMC10023987/ /pubmed/36942302 http://dx.doi.org/10.1016/j.pacs.2023.100470 Text en © 2023 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Research Article
Robin, Martin
Guis, Ruben
Arabul, Mustafa Umit
Zhou, Zili
Pandey, Nitesh
Verbiest, Gerard J.
Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
title Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
title_full Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
title_fullStr Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
title_full_unstemmed Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
title_short Experimental and numerical study of Conoscopic Interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
title_sort experimental and numerical study of conoscopic interferometry sensitivity for optimal acoustic pulse detection in ultrafast acoustics
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10023987/
https://www.ncbi.nlm.nih.gov/pubmed/36942302
http://dx.doi.org/10.1016/j.pacs.2023.100470
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