1. Articles from julien moreau

    1-7 of 7
    1. Micro-spectrometry in the visible range with full-field optical coherence tomography for single absorbing layers

      Micro-spectrometry in the visible range with full-field optical coherence tomography for single absorbing layers
      A time-domain full-field OCT adapted to the visible range and with an original configuration using an interferometric objective, that minimizes mechanical vibrations and some settings and that performs imaging without moving the sample, is presented. This setup achieves micrometer scale imaging, 1.5 μm in the axial direction and 1.2 μm in the lateral one. The principle of micro-spectrometry from OCT data by Fourier transform is described and the influence of some key data processing parameters is simulated and discussed. The experimental spectra reconstruction from tomographic data is validated by comparison with transmittance spectra. Imaging and spectra of dyes ...
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    2. Full-field optical coherence tomography at 800 nm and 1300 nm simultaneously

      Full-field optical coherence tomography at 800 nm and 1300 nm simultaneously
      Optical coherence tomography (OCT) is a technique of choice for micrometer-scale resolution imaging of biological specimens [1,2]. Full-field optical coherence tomography (FF-OCT) was introduced a few years ago as an alternative method to conventional OCT. FF-OCT is based on an interference microscope with a camera as an array detector combined with a low coherence illumination source for parallel acquisition of en-face oriented tomographic images [3- 5]. FF-OCT is a technique of choice for noninvasive three-dimensional imaging of ex vivo biological tissues with ultrahigh spatial resolution (~ 1 µm) [6,7]. FF-OCT is based on phase-shifting interferometry: several interferometric images are ...
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    3. Study and suppression of motion artifacts in full-field optical coherence tomography

      Study and suppression of motion artifacts in full-field optical coherence tomography
      Delphine Sacchet, Julien Moreau, Patrick Georges et al. Significant motion artifacts limit performance of conventional full-field optical coherence tomography for in vivo imaging. A theoretical and experimental study of those limitations is presented and a new FF-OCT system suppressing most of artifacts due to sample motions is demonstrated using instant ... [Proc. SPIE 7715, 77150A (2010)] published Fri May 14, 2010.
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    4. Motion artifact suppression in full-field optical coherence tomography

      Motion artifact suppression in full-field optical coherence tomography
      Significant motion artifacts limit the performance of conventional full-field optical coherence tomography (FF-OCT) for in-vivo imaging. We present a theoretical and experimental study of those limitations. A new FF-OCT system suppressing most of artifacts due to sample motions is demonstrated using instantaneous phase shifting with nonpolarizing optics and pulsed illumination. The experimental setup is based on a Linnik-type interferometer illuminated by the superluminescence emission from a Ti:Al2O3 waveguide crystal. En face tomographic images are calculated as a combination of two phase-opposed interferometric images acquired simultaneously by two CCD cameras placed at both outputs of the interferometer, with a spatial ...
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    5. Simultaneous dual-band ultra-high resolution full-field optical coherence tomography

      Simultaneous dual-band ultra-high resolution full-field optical coherence tomography
      Ultrahigh-resolution full-field optical coherence tomography (FF-OCT) is demonstrated in the 800 nm and 1200 nm wavelength regions simultaneously using a Silicon-based (Si) CCD camera and an Indium Gallium Arsenide (InGaAs) camera as area detectors and a halogen lamp as illumination source. The ... [Opt. Express 16, 19434-19446 (2008)]
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    6. Spectroscopic ultrahigh-resolution full-field optical coherence microscopy

      Spectroscopic ultrahigh-resolution full-field optical coherence microscopy
      Arnaud Dubois, Julien Moreau, Claude Boccara We have developed a full-field optical coherence microscopy system providing intensity-based tomographic images and spectroscopic information with ultrahigh spatial resolution. Local measurements of the backscattered light spectrum center of mass are achieved through short-time Fourier analysis of ... [Opt. Express 16, 17082-17091 (2008)]
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    7. Optical coherence tomography: non-destructive imaging and spectral information of pigments

      Gael Latour, Julien Moreau, Mady Elias et al. Optical Coherence Tomography (OCT) is a non-invasive and non-destructive technique which is very interesting for the study of works of art. Based on a Michelson interferometer, our device has been adapted for the recording of information in the visible range. This system allows three-dimensional ima ... [Proc. SPIE Int. Soc. Opt. Eng. 6618, 661806 (2007)] published Mon Jul 16, 2007.
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    1-7 of 7
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    1. (7 articles) Institut d'Optique
    2. (2 articles) Université Pierre et Marie Curie
    3. (1 articles) Northwestern University
    4. (1 articles) Jikei University School of Medicine
    5. (1 articles) Indiana University
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    Spectroscopic ultrahigh-resolution full-field optical coherence microscopy Simultaneous dual-band ultra-high resolution full-field optical coherence tomography Motion artifact suppression in full-field optical coherence tomography Study and suppression of motion artifacts in full-field optical coherence tomography Full-field optical coherence tomography at 800 nm and 1300 nm simultaneously Micro-spectrometry in the visible range with full-field optical coherence tomography for single absorbing layers PREcise Percutaneous Coronary Intervention for Stent OptimizatION in Treatment of COMPLEX Lesion (PRECISION-COMPLEX) Real-Time Risk Score for Glaucoma Mass Screening by Spectral Domain Optical Coherence Tomography: Development and Validation Macrophages in close proximity to the vitreoretinal interface are potential biomarkers of inflammation during retinal vascular disease Vertical scan imaging of Anterior Segment Optical Coherence Tomography for descemet anchoring caterpillar seta: A case report and review of literature Evaluation of signal degradation due to birefringence in a multiple reference optical coherence tomography system with polarization-based balanced detection An improved method for murine laser-induced choroidal neovascularization lesion quantification from optical coherence tomography images