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Verrier N, Debailleul M, Haeberlé O. Recent Advances and Current Trends in Transmission Tomographic Diffraction Microscopy. Sensors (Basel) 2024; 24:1594. [PMID: 38475130 DOI: 10.3390/s24051594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
Optical microscopy techniques are among the most used methods in biomedical sample characterization. In their more advanced realization, optical microscopes demonstrate resolution down to the nanometric scale. These methods rely on the use of fluorescent sample labeling in order to break the diffraction limit. However, fluorescent molecules' phototoxicity or photobleaching is not always compatible with the investigated samples. To overcome this limitation, quantitative phase imaging techniques have been proposed. Among these, holographic imaging has demonstrated its ability to image living microscopic samples without staining. However, for a 3D assessment of samples, tomographic acquisitions are needed. Tomographic Diffraction Microscopy (TDM) combines holographic acquisitions with tomographic reconstructions. Relying on a 3D synthetic aperture process, TDM allows for 3D quantitative measurements of the complex refractive index of the investigated sample. Since its initial proposition by Emil Wolf in 1969, the concept of TDM has found a lot of applications and has become one of the hot topics in biomedical imaging. This review focuses on recent achievements in TDM development. Current trends and perspectives of the technique are also discussed.
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Affiliation(s)
- Nicolas Verrier
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, 68093 Mulhouse, France
| | - Matthieu Debailleul
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, 68093 Mulhouse, France
| | - Olivier Haeberlé
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, 68093 Mulhouse, France
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Taddese AM, Lo M, Verrier N, Debailleul M, Haeberlé O. Jones tomographic diffractive microscopy with a polarized array sensor. Opt Express 2023; 31:9034-9051. [PMID: 36860005 DOI: 10.1364/oe.483050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Tomographic diffractive microscopy (TDM) based on scalar light-field approximation is widely implemented. Samples exhibiting anisotropic structures, however, necessitate accounting for the vectorial nature of light, leading to 3-D quantitative polarimetric imaging. In this work, we have developed a high-numerical aperture (at both illumination and detection) Jones TDM system, with detection multiplexing via a polarized array sensor (PAS), for imaging optically birefringent samples at high resolution. The method is first studied through image simulations. To validate our setup, an experiment using a sample containing both birefringent and non-birefringent objects is performed. Araneus diadematus spider silk fiber and Pinna nobilis oyster shell crystals are finally studied, allowing us to assess both birefringence and fast-axis orientation maps.
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Abbessi R, Verrier N, Taddese AM, Laroche S, Debailleul M, Lo M, Courbot JB, Haeberlé O. Multimodal image reconstruction from tomographic diffraction microscopy data. J Microsc 2022; 288:193-206. [PMID: 35775607 DOI: 10.1111/jmi.13131] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/18/2022] [Accepted: 06/24/2022] [Indexed: 11/29/2022]
Abstract
Tomographic Diffraction Microscopy (TDM) is a tool of choice for high-resolution, marker-less 3D imaging of biological samples. Based on a generalization of Digital Holographic Microscopy (DHM) with full control of the sample's illumination, TDM measures, from many illumination directions, the diffracted fields in both phase and amplitude. Photon budget associated to TDM imaging is low. Therefore, TDM is not limited by photo-toxicity issues. The recorded information makes it possible to reconstruct 3D refractive index distribution (with both refraction and absorption contributions) of the object under scrutiny, without any staining. In this contribution, we show an alternate use of this information. A tutorial for multimodal image reconstruction is proposed. Both intensity contrasts and phase contrasts are proposed, from the image formation model to the final reconstruction with both 2D and 3D rendering, turning TDM into a kind of "universal" digital microscope. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Riadh Abbessi
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Nicolas Verrier
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Asemare Mengistie Taddese
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Steve Laroche
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Matthieu Debailleul
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Mohamed Lo
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Jean-Baptiste Courbot
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
| | - Olivier Haeberlé
- Institut Recherche en Informatique, Mathématiques, Automatique et Signal (IRIMAS UR UHA 7499), Université de Haute-Alsace, IUT Mulhouse, 61 rue Albert Camus, Mulhouse Cedex, 68093, France
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Yang L, Ma Z, Liu S, Jiao Q, Zhang J, Zhang W, Pei J, Li H, Li Y, Zou Y, Xu Y, Tan X. Study of the Off-Axis Fresnel Zone Plate of a Microscopic Tomographic Aberration. Sensors (Basel) 2022; 22:s22031113. [PMID: 35161858 PMCID: PMC8838344 DOI: 10.3390/s22031113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/26/2022] [Accepted: 01/26/2022] [Indexed: 12/04/2022]
Abstract
A tomographic microscopy system can achieve instantaneous three-dimensional imaging, and this type of microscopy system has been widely used in the study of biological samples; however, existing chromatographic microscopes based on off-axis Fresnel zone plates have degraded image quality due to geometric aberrations such as spherical aberration, coma aberration, and image scattering. This issue hinders the further development of chromatographic microscopy systems. In this paper, we propose a method for the design of an off-axis Fresnel zone plate with the elimination of aberrations based on double exposure point holographic surface interference. The aberration coefficient model of the optical path function was used to solve the optimal recording parameters, and the principle of the aberration elimination tomography microscopic optical path was verified. The simulation and experimental verification were carried out utilizing a Seidel coefficient, average gradient, and signal-to-noise ratio. First, the aberration coefficient model of the optical path function was used to solve the optimal recording parameters. Then, the laminar mi-coroscopy optical system was constructed for the verification of the principle. Finally, the simulation calculation results and the experimental results were verified by comparing the Seidel coefficient, average gradient, and signal-to-noise ratio of the microscopic optical system before and after the aberration elimination. The results show that for the diffractive light at the orders 0 and ±1, the spherical aberration W040 decreases by 62–70%, the coma aberration W131 decreases by 96–98%, the image dispersion W222 decreases by 71–82%, and the field curvature W220 decreases by 96–96%, the average gradient increases by 2.8%, and the signal-to-noise ratio increases by 18%.
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Affiliation(s)
- Lin Yang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenyu Ma
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
| | - Siqi Liu
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingbin Jiao
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
| | - Jiahang Zhang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Zhang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Pei
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Li
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuhang Li
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yubo Zou
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuxing Xu
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Tan
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- Center of Materials Science and Optoelectronics Engineering, Chinese Academy of Sciences, Beijing 100049, China
- Correspondence:
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Taddese AM, Verrier N, Debailleul M, Courbot JB, Haeberlé O. Optimizing sample illumination scanning in transmission tomographic diffractive microscopy. Appl Opt 2021; 60:1694-1704. [PMID: 33690516 DOI: 10.1364/ao.417061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Due to the sequential nature of data acquisition, it is preferable to limit the number of illuminations to be used in tomographic diffractive microscopy experiments, especially if fast imaging is foreseen. On the other hand, for high-quality, high-resolution imaging, the Fourier space has to be optimally filled. Up to now, the problem of optimal Fourier space filling has not been investigated in itself. In this paper, we perform a comparative study to analyze the effect of sample scanning patterns on Fourier space filling for a transmission setup. Optical transfer functions for several illumination patterns are studied. Simulation as well as experiments are conducted to compare associated image reconstructions. We found that 3D uniform angular sweeping best fills the Fourier space, leading to better quality images.
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Rasedujjaman M, Affannoukoué K, Garcia-Seyda N, Robert P, Giovannini H, Chaumet PC, Theodoly O, Valignat MP, Belkebir K, Sentenac A, Maire G. Three-dimensional imaging with reflection synthetic confocal microscopy. Opt Lett 2020; 45:3721-3724. [PMID: 32630938 DOI: 10.1364/ol.397364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 05/30/2020] [Indexed: 06/11/2023]
Abstract
Biomedical imaging lacks label-free microscopy techniques able to reconstruct the contour of biological cells in solution, in 3D and with high resolution, as required for the fast diagnosis of numerous diseases. Inspired by computational optical coherence tomography techniques, we present a tomographic diffractive microscope in reflection geometry used as a synthetic confocal microscope, compatible with this goal and validated with the 3D reconstruction of a human effector T lymphocyte.
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Foucault L, Verrier N, Debailleul M, Courbot JB, Colicchio B, Simon B, Vonna L, Haeberlé O. Versatile transmission/reflection tomographic diffractive microscopy approach. J Opt Soc Am A Opt Image Sci Vis 2019; 36:C18-C27. [PMID: 31873690 DOI: 10.1364/josaa.36.000c18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/20/2019] [Indexed: 05/22/2023]
Abstract
Tomographic diffractive microscopy (TDM) has gained interest in recent years due to its ability to deliver high-resolution, three-dimensional images of unlabeled samples. It has been applied to transparent samples in transmission mode, as well as to surface studies in reflection mode. Mudry et al. [Opt. Lett.35, 1857 (2010)OPLEDP0146-959210.1364/OL.35.001857] introduced the concept of mirror-assisted TDM (MA-TDM), an elegant approach for achieving quasi-isotropic-resolution microscopic imaging, but which is still to be experimentally applied. In this work, we show that a simplified version of MA-TDM allows for transforming a reflective TDM setup into a more versatile instrument, also capable of observing transparent samples in transmission mode if using specific sample holders made out of a mirror and coated with a low-thickness transparent spacer.
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Min J, Yao B, Trendafilova V, Ketelhut S, Kastl L, Greve B, Kemper B. Quantitative phase imaging of cells in a flow cytometry arrangement utilizing Michelson interferometer-based off-axis digital holographic microscopy. J Biophotonics 2019; 12:e201900085. [PMID: 31169960 DOI: 10.1002/jbio.201900085] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/13/2019] [Accepted: 06/04/2019] [Indexed: 05/23/2023]
Abstract
We combined Michelson-interferometer-based off-axis digital holographic microscopy (DHM) with a common flow cytometry (FCM) arrangement. Utilizing object recognition procedures and holographic autofocusing during the numerical reconstruction of the acquired off-axis holograms, sharply focused quantitative phase images of suspended cells in flow were retrieved without labeling, from which biophysical cellular features of distinct cells, such as cell radius, refractive index and dry mass, can be subsequently retrieved in an automated manner. The performance of the proposed concept was first characterized by investigations on microspheres that were utilized as test standards. Then, we analyzed two types of pancreatic tumor cells with different morphology to further verify the applicability of the proposed method for quantitative live cell imaging. The retrieved biophysical datasets from cells in flow are found in good agreement with results from comparative investigations with previously developed DHM methods under static conditions, which demonstrates the effectiveness and reliability of our approach. Our results contribute to the establishment of DHM in imaging FCM and prospect to broaden the application spectrum of FCM by providing complementary quantitative imaging as well as additional biophysical cell parameters which are not accessible in current high-throughput FCM measurements.
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Affiliation(s)
- Junwei Min
- Biomedical Technology Center, University of Muenster, Muenster, Germany
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
| | - Baoli Yao
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China
| | | | - Steffi Ketelhut
- Biomedical Technology Center, University of Muenster, Muenster, Germany
| | - Lena Kastl
- Biomedical Technology Center, University of Muenster, Muenster, Germany
| | - Burkhard Greve
- Department of Radiotherapy-Radiooncology-, University Hospital Muenster, Muenster, Germany
| | - Björn Kemper
- Biomedical Technology Center, University of Muenster, Muenster, Germany
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Zhang T, Unger K, Maire G, Chaumet PC, Talneau A, Godhavarti C, Giovannini H, Belkebir K, Sentenac A. Multi-wavelength multi-angle reflection tomography. Opt Express 2018; 26:26093-26105. [PMID: 30469701 DOI: 10.1364/oe.26.026093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 08/29/2018] [Indexed: 06/09/2023]
Abstract
We have developed a reflection tomographic microscope in which the sample is reconstructed from different holograms recorded under various angles and wavelengths of incidence. We present an iterative inversion algorithm based on a rigorous modeling of the wave-sample interaction that processes all the data simultaneously to estimate the sample permittivity distribution. We show that using several wavelengths permits a significant improvement of the reconstruction, especially along the optical axis.
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Perrin S, Leong-Hoï A, Lecler S, Pfeiffer P, Kassamakov I, Nolvi A, Hæggström E, Montgomery P. Microsphere-assisted phase-shifting profilometry. Appl Opt 2017; 56:7249-7255. [PMID: 29047987 DOI: 10.1364/ao.56.007249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/11/2017] [Indexed: 06/07/2023]
Abstract
In the present work, we have investigated the combination of a superresolution microsphere-assisted 2D imaging technique with low-coherence phase-shifting interference microscopy. The imaging performance of this technique is studied by numerical simulation in terms of the magnification and the lateral resolution as a function of the geometrical and optical parameters. The results of simulations are compared with the experimental measurements of reference gratings using a Linnik interference configuration. Additional measurements are also shown on nanostructures. An improvement by a factor of 4.7 in the lateral resolution is demonstrated in air, thus giving a more isotropic nanometric resolution for full-field surface profilometry in the far field.
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Lin YC, Chen HC, Tu HY, Liu CY, Cheng CJ. Optically driven full-angle sample rotation for tomographic imaging in digital holographic microscopy. Opt Lett 2017; 42:1321-1324. [PMID: 28362759 DOI: 10.1364/ol.42.001321] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study presents a novel tomographic imaging technique for living biomedical samples using an optically driven full-angle rotation scheme based on digital holographic microscopy, in which the three-dimensional refractive index distribution inside the sample can be measured and analyzed. To accomplish the full-angle sample rotation, two optical traps are driven by highly focused spots on the top and bottom of the sample. The rim image of the sample outside the focal depth at the different rotation angles and propagation distances can be corrected and compensated, respectively, via numerical focusing; therefore, tomographic imaging of the sample can be conducted. The proposed approach shows that an entire symmetric spectrum can be acquired for tomographic reconstruction without the missing apple core problem as in traditional sample-rotation schemes. The three-dimensional refractive index of living yeast in a fluid medium is measured and verified.
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Malek M, Khelfa H, Picart P, Mounier D, Poilâne C. Microtomography imaging of an isolated plant fiber: a digital holographic approach. Appl Opt 2016; 55:A111-A121. [PMID: 26835942 DOI: 10.1364/ao.55.00a111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper describes a method for optical projection tomography for the 3D in situ characterization of micrometric plant fibers. The proposed approach is based on digital holographic microscopy, the holographic capability being convenient to compensate for the runout of the fiber during rotations. The setup requires a telecentric alignment to prevent from the changes in the optical magnification, and calibration results show the very good experimental adjustment. Amplitude images are obtained from the set of recorded and digitally processed holograms. Refocusing of blurred images and correction of both runout and jitter are carried out to get appropriate amplitude images. The 3D data related to the plant fiber are computed from the set of images using a dedicated numerical processing. Experimental results exhibit the internal and external shapes of the plant fiber. These experimental results constitute the first attempt to obtain 3D data of flax fiber, about 12 μm×17 μm in apparent diameter, with a full-field optical tomography approach using light in the visible range.
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Abstract
To face the challenges of modern health care, new imaging techniques with subcellular resolution or detection over wide fields are required. Far field optical nanoscopy presents many new solutions, providing high resolution or detection at high speed. We present a new classification scheme to help appreciate the growing number of optical nanoscopy techniques. We underline an important distinction between superresolution techniques that provide improved resolving power and nanodetection techniques for characterizing unresolved nanostructures. Some of the emerging techniques within these two categories are highlighted with applications in biophysics and medicine. Recent techniques employing wider angle imaging by digital holography and scattering lens microscopy allow superresolution to be achieved for subcellular and even in vivo, imaging without labeling. Nanodetection techniques are divided into four subcategories using contrast, phase, deconvolution, and nanomarkers. Contrast enhancement is illustrated by means of a polarized light-based technique and with strobed phase-contrast microscopy to reveal nanostructures. Very high sensitivity phase measurement using interference microscopy is shown to provide nanometric surface roughness measurement or to reveal internal nanometric structures. Finally, the use of nanomarkers is illustrated with stochastic fluorescence microscopy for mapping intracellular structures. We also present some of the future perspectives of optical nanoscopy.
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Affiliation(s)
- Paul C Montgomery
- Laboratoire des Sciences de l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), Unistra-CNRS, Strasbourg, France
| | - Audrey Leong-Hoi
- Laboratoire des Sciences de l'Ingénieur, de l'Informatique et de l'Imagerie (ICube), Unistra-CNRS, Strasbourg, France
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Schubert R, Vollmer A, Ketelhut S, Kemper B. Enhanced quantitative phase imaging in self-interference digital holographic microscopy using an electrically focus tunable lens. Biomed Opt Express 2014; 5:4213-22. [PMID: 25574433 PMCID: PMC4285600 DOI: 10.1364/boe.5.004213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 10/11/2014] [Accepted: 10/17/2014] [Indexed: 05/02/2023]
Abstract
Self-interference digital holographic microscopy (DHM) has been found particular suitable for simplified quantitative phase imaging of living cells. However, a main drawback of the self-interference DHM principle are scattering patterns that are induced by the coherent nature of the laser light which affect the resolution for detection of optical path length changes. We present a simple and efficient technique for the reduction of coherent disturbances in quantitative phase images. Therefore, amplitude and phase of the sample illumination are modulated by an electrically focus tunable lens. The proposed method is in particular convenient with the self-interference DHM concept. Results from the characterization of the method show that a reduction of coherence induced disturbances up to 70 percent can be achieved. Finally, the performance for enhanced quantitative imaging of living cells is demonstrated.
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Affiliation(s)
- Robin Schubert
- Center for Biomedical Optics and Photonics, University of Muenster, Robert-Koch-Str. 45, D-48149 Muenster,
Germany
- George Huntington Institute, Johann-Krane-Weg 27, D-48149 Muenster,
Germany
| | - Angelika Vollmer
- Center for Biomedical Optics and Photonics, University of Muenster, Robert-Koch-Str. 45, D-48149 Muenster,
Germany
| | - Steffi Ketelhut
- Biomedical Technology Center, University of Muenster, Mendelstr. 17, D-48149 Muenster,
Germany
| | - Björn Kemper
- Biomedical Technology Center, University of Muenster, Mendelstr. 17, D-48149 Muenster,
Germany
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