1. Articles from E. Leiss-Holzinger

    1-2 of 2
    1. Multimodal system for non-contact photoacoustic imaging, optical coherence tomography, and mid-infrared photoacoustic spectroscopy

      Multimodal system for non-contact photoacoustic imaging, optical coherence tomography, and mid-infrared photoacoustic spectroscopy

      We present a multimodal optical setup, allowing non-contact photoacoustic imaging, optical coherence tomography (OCT), and non-contact mid-infrared photoacoustic spectroscopy. Photoacoustic signals are generated using a Nd:YAG laser and a tunable quantum cascade laser for photoacoustic imaging and spectroscopy, respectively. Photoacoustic signals are acquired by measuring the surface displacement of a specimen using a fiber-optic Mach-Zehnder interferometer. In the same fiber-optic network a spectral-domain OCT system is realized. Light from the photoacoustic detection laser and the OCT source are multiplexed into one fiber and the same objective is used for both imaging modalities. Light reflected from specimens is demultiplexed and ...

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    2. 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 for investigation. Exemplified by tensile testing of elastomer particle filled polypropylene specimens, local dissimilarity evaluation of the OCT images was performed. The results show the high potential of OCT to ...

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    1-2 of 2
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  2. Topics in the News

    1. (2 articles) RECENDT
    2. (2 articles) Elisabeth Leiss-Holzinger
    3. (1 articles) Johannes Kepler University of Linz
    4. (1 articles) Michael Leitner
    5. (1 articles) David Stifter
    6. (1 articles) Zoltan Major
    7. (1 articles) Bettina Heise
    8. (1 articles) Andreas Buchsbaum
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