Extended field-of-view light-sheet microscopy

Light-sheet fluorescence microscopy enables rapid 3D imaging of biological samples. Unlike confocal and two-photon microscopes, a light-sheet microscope illuminates the focal plane with an objective orthogonal to the detection axis and images it in a single snapshot. Its combination of high contrast...

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Main Author: Vettenburg Tom
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2022/10/epjconf_eosam2022_02009.pdf
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author Vettenburg Tom
author_facet Vettenburg Tom
author_sort Vettenburg Tom
collection DOAJ
description Light-sheet fluorescence microscopy enables rapid 3D imaging of biological samples. Unlike confocal and two-photon microscopes, a light-sheet microscope illuminates the focal plane with an objective orthogonal to the detection axis and images it in a single snapshot. Its combination of high contrast and minimal sample exposure make it ideal to image thick samples with sub-cellular resolution. To uniformly illuminate a wide field-of-view without compromising axial resolution, propagation-invariant light-fields such as Bessel and Airy beams have been put forward. These beams do however irradiate the sample with a relatively broad transversal structure. The fluorescence excited by the side lobes of Bessel beams can be blocked physically during recording; though at the cost of increased sample exposure. In contrast, the Airy beam has a fine transversal structure that is both curved and asymmetric. Its fine structure captures all the high-frequency components that enable high axial resolution without the need to discard useful fluorescence. This advantage does not carry over naturally to two-photon excitation where the fine transversal structure is suppressed. We demonstrate a symmetric and planar Airy light-sheet that can be used with two-photon excitation and that does not rely on deconvolution.
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spelling doaj.art-e77a3ac52e5b4b83afc5461e8bd1898e2022-12-22T04:34:17ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012660200910.1051/epjconf/202226602009epjconf_eosam2022_02009Extended field-of-view light-sheet microscopyVettenburg Tom0School of Science and Engineering, University of DundeeLight-sheet fluorescence microscopy enables rapid 3D imaging of biological samples. Unlike confocal and two-photon microscopes, a light-sheet microscope illuminates the focal plane with an objective orthogonal to the detection axis and images it in a single snapshot. Its combination of high contrast and minimal sample exposure make it ideal to image thick samples with sub-cellular resolution. To uniformly illuminate a wide field-of-view without compromising axial resolution, propagation-invariant light-fields such as Bessel and Airy beams have been put forward. These beams do however irradiate the sample with a relatively broad transversal structure. The fluorescence excited by the side lobes of Bessel beams can be blocked physically during recording; though at the cost of increased sample exposure. In contrast, the Airy beam has a fine transversal structure that is both curved and asymmetric. Its fine structure captures all the high-frequency components that enable high axial resolution without the need to discard useful fluorescence. This advantage does not carry over naturally to two-photon excitation where the fine transversal structure is suppressed. We demonstrate a symmetric and planar Airy light-sheet that can be used with two-photon excitation and that does not rely on deconvolution.https://www.epj-conferences.org/articles/epjconf/pdf/2022/10/epjconf_eosam2022_02009.pdf
spellingShingle Vettenburg Tom
Extended field-of-view light-sheet microscopy
EPJ Web of Conferences
title Extended field-of-view light-sheet microscopy
title_full Extended field-of-view light-sheet microscopy
title_fullStr Extended field-of-view light-sheet microscopy
title_full_unstemmed Extended field-of-view light-sheet microscopy
title_short Extended field-of-view light-sheet microscopy
title_sort extended field of view light sheet microscopy
url https://www.epj-conferences.org/articles/epjconf/pdf/2022/10/epjconf_eosam2022_02009.pdf
work_keys_str_mv AT vettenburgtom extendedfieldofviewlightsheetmicroscopy