1. Articles mentioning both Johannes Kepler University of Linz and David Stifter

    1-24 of 34 1 2 »
    1. Full-field optical coherence tomography in a balanced detection mode

      Full-field optical coherence tomography in a balanced detection mode
      We discuss balanced time-domain full-field optical coherence tomography (FF-OCT) realized in a MachZehnder configuration. The balanced detection scheme and spatial phase shifting allow single-shot acquisition and reconstruction in FF-OCT. Combined with a 2D quadrature signal-based demodulation technique applying the Riesz transform, previously illustrated for a dual-shot temporal phase shifting in FF-OCT, we demonstrate the concept for single-shot spatial phase shifting. The monitoring of dynamic processes by time-domain FF-OCT is enabled ...
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    2. Feature Of The Week 5/25/14: Exploiting Advanced Low Coherence Interferometric Imaging Techniques for Material Research Applications

      Feature Of The Week 5/25/14: Exploiting Advanced Low Coherence Interferometric Imaging Techniques for Material Research Applications
      ... corrosion processes, like filiform corrosion.For more information see [4,5]. Courtesy Bettina Heise from the Johannes Kepler University of Linz. References:[1] Heise, B. et al., Full Field Optical Coherence Microsco...
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    3. Low coherence interferometric second harmonic generation microscopy for non-destructive material testing using a broadband 1550 nm fs-fiber laser

      Low coherence interferometric second harmonic generation microscopy for non-destructive material testing using a broadband 1550 nm fs-fiber laser
      ...aboratory for Microscopic and Spectroscopic Material Characterization, Center for Surface- and Nanoanalytics, Johannes Kepler University Linz, Altenbergerstrasse 69, A-4040 Linz, Austria ^2 voestalpine Stahl GmbH, voesta...
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    4. Simultaneous detection of optical retardation and axis orientation by polarization-sensitive full-field optical coherence microscopy for material testing

      Simultaneous detection of optical retardation and axis orientation by polarization-sensitive full-field optical coherence microscopy for material testing
      We present a polarization-sensitive full-field optical coherence microscopy modality which is capable of simultaneously delivering depth resolved information on the reflectivity, optical retardation and optical axis orientation. In this way local birefringence, inherent stressstrain fields and optical anisotropies can be visualized with high resolution, as exemplified for various technical material applications.
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    5. In-Situ Optical Coherence Tomography (OCT) for the Time-Resolved Investigation of Crystallization Processes in Polymers

      In-Situ Optical Coherence Tomography (OCT) for the Time-Resolved Investigation of Crystallization Processes in Polymers
      Optical coherence tomography (OCT) is a low-coherence interferometric imaging method which was developed in the 1990s prevalently in the area of biomedical diagnostics. (1) It generates depth scans of samples in a contact-free, nondestructive manner. Having become a standard method for ophthalmologic examinations, (2, 3) within the past decade also applications outside the medical field were found, as summarized in a recent review (4) and with a special focus put ...
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    6. Feature Of The Week 1/6/13: Johannes Kepler University Linz Investigates Full-Filed Optical Coherence Microscopy For Dynamic Imaging

      Feature Of The Week 1/6/13: Johannes Kepler University Linz Investigates Full-Filed Optical Coherence Microscopy For Dynamic Imaging
      ...odulation scheme. Below is a summary of the latest work with respect to FF-OCM imaging, by researchers at the Johannes Kepler University Linz (CDL-MS-MACH) and TU Bergakademie Freiberg. By using a demodulation scheme bas...
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    7. Evaluation of structural change and local strain distribution in polymers comparatively imaged by FFSA and OCT techniques

      Evaluation of structural change and local strain distribution in polymers comparatively imaged by FFSA and OCT techniques
      Mechanical material testing combined with optical coherence tomography (OCT) allows for the first time the immediate detection of inner structural changes along with a qualitative observation of the local strain distribution in surface near bulk regions of semitransparent and translucent specimens. In addition to a 3D full field strain analysis (FFSA) system based on digital image correlation (DIC), a customized spectral domain OCT system operating at 1550 nm was applied ...
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    8. Spatially resolved stress measurements in materials with polarization-sensitive optical coherence tomography: image acquisition and processing aspects.

      Spatially resolved stress measurements in materials with polarization-sensitive optical coherence tomography: image acquisition and processing aspects.
      ...r, Erich Götzinger, Michael Pircher, Christoph K. Hitzenberger, Rainer Engelke, Gisela Ahrens, Gabi Grützner, David Stifter (Submitted on 8 Nov 2011) Abstract: We demonstrate that polarization-sensitive optical coherence...
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    9. Spectral domain polarization sensitive optical coherence tomography at 1.55 μm: novel developments and applications for dynamic studies in materials science

      Spectral domain polarization sensitive optical coherence tomography at 1.55 μm: novel developments and applications for dynamic studies in materials science
      ...mentary knowledge on the evolvement of the internal stress situation is obtained in a spatially resolved way. David Stifter, Elisabeth Leiss-Holzinger, Bettina Heise, Jean-Luc Bouchot, Zoltan Major, Michael Pircher, Eric...
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    10. Feature Of The Week 1/23/11: Austrian Researchers Continue to Push the Envelope for the Application of OCT in Non-Destructive Evaluation and Testing

      Feature Of The Week 1/23/11: Austrian Researchers Continue to Push the Envelope for the Application of OCT in Non-Destructive Evaluation and Testing
      ...ound to change as researchers continue to explore this area.  Some recent work by Austrian researchers at the Johannes Kepler University Linz, Medical University of Vienna, and RECENDT GmbH showed the power of OCT in thi...
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    11. Dynamic optical studies in materials testing with spectral-domain polarization-sensitive optical coherence tomography

      Dynamic optical studies in materials testing with spectral-domain polarization-sensitive optical coherence tomography
      ...rimetry * (230.5440) Optical devices : Polarization-selective devices ToC Category: Category Pending Citation David Stifter, Elisabeth Leiss-Holzinger, Zoltan Major, Bernhard Baumann, Michael Pircher, Erich Götzinger, Ch...
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    12. Spatially Resolved Stress Measurements in Materials With Polarisation-Sensitive Optical Coherence Tomography: Image Acquisition and Processing Aspects

      Spatially Resolved Stress Measurements in Materials With Polarisation-Sensitive Optical Coherence Tomography: Image Acquisition and Processing Aspects
      ...resist technology GmbH, Köpenicker Str. 325, 12555 Berlin, Germany ZONA-Center for Surface and Nanoanalytics, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria phase unwrapping; photomechanics; p...
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    13. Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings

      Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings
      With 47 samples of commercially available oil paints, the applicability of Optical coherence tomography to noninvasive tomography of paint layers was examined. Two different instruments, utilizing near-infrared light with central wavelength of 823nm and, for the first time, 1.55 μm, were used to obtain cross-sectional images. Example tomograms are given; a ray tracing correction of images is also discussed. The tests revealed that applicability of OCT is limited to ...
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    14. An investigation of the accelerated thermal degradation of different epoxy resin composites using x-ray micro computed tomography and optical coherence tomography

      Epoxy resin composites reinforced with hollow glass microspheres, microlight microspheres, 3D parabeam glass, and E-Glass individually were subjected to accelerated thermal degradation conditions. X-ray micro computed tomography (XμCT) was used to evaluate density changes, reinforcement filler damage, homogeneity, cracks and microcracks in the bulk of the different epoxy resin composites. XμCT 3D images, 2D reconstructed images and voids calculations revealed microspheres damage, filler distributions and showed cracks in all composites ...
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    15. 1-24 of 34 1 2 »
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  2. Organizations in the News

    1. (11 articles) Medical University of Vienna
    2. (11 articles) Upper Austrian Research GmbH
    3. (4 articles) RECENDT
    4. (1 articles) Laser Zentrum Hannover
    5. (1 articles) UK National Physical Laboratory
    6. (1 articles) Nicolaus Copernicus University
  3. People in the News

    1. (21 articles) Bettina Heise
    2. (12 articles) Stefan E. Schausberger
    3. (10 articles) Michael Pircher
    4. (10 articles) Christoph K. Hitzenberger
    5. (10 articles) Erich Götzinger
    6. (8 articles) Karin Wiesauer
    7. (5 articles) Bernhard Baumann
    8. (5 articles) Elisabeth Leiss-Holzinger
    9. (4 articles) Zoltan Major
    10. (3 articles) Martin Wurm
    11. (2 articles) Michael Leitner
    12. (1 articles) Michalina J. Góra
  4. OCT Companies in the News

    1. (1 articles) Thorlabs
    2. (1 articles) Superlum
    3. (1 articles) Michelson Diagnostics