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

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      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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      Mentions: David Stifter Bettina Heise Stefan E. Schausberger

    2. Feature Of The Week 5/25/14: Exploiting Advanced Low Coherence Interferometric Imaging Techniques for Material Research Applications

      Explore Optical Coherence Tomography News NDE/NDT
      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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      Mentions: David Stifter Bettina Heise Stefan E. Schausberger

    4. Low coherence interferometric second harmonic generation microscopy for non-destructive material testing using a broadband 1550 nm fs-fiber laser

      Explore IOPscience Microscopy , NDE/NDT
      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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      Mentions: David Stifter Johannes Kepler University of Linz

    5. Simultaneous detection of optical retardation and axis orientation by polarization-sensitive full-field optical coherence microscopy for material testing

      Explore IOPscience Microscopy , NDE/NDT
      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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      Mentions: David Stifter Bettina Heise Stefan E. Schausberger

    6. In-Situ Optical Coherence Tomography (OCT) for the Time-Resolved Investigation of Crystallization Processes in Polymers

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      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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      Mentions: David Stifter Bettina Heise Elisabeth Leiss-Holzinger

    11. Feature Of The Week 1/6/13: Johannes Kepler University Linz Investigates Full-Filed Optical Coherence Microscopy For Dynamic Imaging

      Explore Optical Coherence Tomography News Microscopy
      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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      Mentions: David Stifter Bettina Heise Stefan E. Schausberger

    13. Evaluation of structural change and local strain distribution in polymers comparatively imaged by FFSA and OCT techniques

      Explore eXPRESS Polymer Letters NDE/NDT
      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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      Mentions: David Stifter Bettina Heise Zoltan Major

    14. Spatially resolved stress measurements in materials with polarization-sensitive optical coherence tomography: image acquisition and processing aspects.

      Explore arxiv.org NDE/NDT
      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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      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    17. Spectral domain polarization sensitive optical coherence tomography at 1.55 μm: novel developments and applications for dynamic studies in materials science

      Explore SPIE Digital Library NDE/NDT
      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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      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    18. 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

      Explore Optical Coherence Tomography News NDE/NDT
      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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      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    20. Dynamic optical studies in materials testing with spectral-domain polarization-sensitive optical coherence tomography

      Explore opticsinfobase.org NDE/NDT
      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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      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    21. Spatially Resolved Stress Measurements in Materials With Polarisation-Sensitive Optical Coherence Tomography: Image Acquisition and Processing Aspects

      Explore Wiley Online Library NDE/NDT
      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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      Mentions: Christoph K. Hitzenberger Michael Pircher Medical University of Vienna

    23. Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings

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      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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      Mentions: Nicolaus Copernicus University Anna Szkulmowska Upper Austrian Research GmbH

    24. An investigation of the accelerated thermal degradation of different epoxy resin composites using x-ray micro computed tomography and optical coherence tomography

      Explore ScienceDirect NDE/NDT
      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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      Mentions: Upper Austrian Research GmbH David Stifter Karin Wiesauer
    25. 1-24 of 34 1 2 »
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  4. Organizations in the News

    1. (11 articles) Medical University of Vienna
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    3. (4 articles) RECENDT
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    5. (1 articles) UK National Physical Laboratory
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  5. 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

  6. OCT Companies in the News

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