1. Articles from Adrian G. Podoleanu

    49-58 of 58 « 1 2 3
    1. Investigation of bracket bonding for orthodontic treatments using en-face optical coherence tomography

      Cosmin Sinescu, Meda L. Negrutiu, Michael Hughes et al. Despite good diagnosis and treatment planning, orthodontic treatment can fail if bonding fails. It is now common practice to address the aesthetic appearance of patients using aesthetic brackets instead of metal ones. Therefore, bonding aesthetic brackets has become an issue for orthodontists today. ... [Proc. SPIE Int. Soc. Opt. Eng. 6991, 69911M (2008)] published Fri May 2, 2008.
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    2. Fixed partial dentures investigated by optical coherent tomography

      Cosmin Sinescu, Meda Negrutiu, Carmen Todea et al. Fixed partial prostheses as integral ceramics, integral polymers, metal ceramics or metal polymers bridges, are mainly used in the frontal part of the dental arch (especially the integral bridges). They have to satisfy high stress requirements as well as esthetic. The masticatory stress may induce f ... [Proc. SPIE Int. Soc. Opt. Eng. 6847, 684707 (2008)] published Mon Feb 18, 2008.
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    3. Versatile confocal/optical coherence tomography system for embryonic developmental imaging

      An Optical Coherence Tomography (OCT) imaging system has been designed and constructed to acquire images of scattering biological samples. By simultaneously acquiring and displaying high resolution en-face (C-scan) OCT and Laser Scanning Confocal images of Drosophila melanogaster embryos we demonstrate the potential of the system to be used as a powerful tool for imaging in Drosophila embryonic development. The system can equally be used for non invasive visualizations and measurements of the movement of Drosophila melanogaster larval heart and can easily be switched in the OCT B-scan regime. The confocal channel adds guidance as the specimen can be quickly located ...
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    4. Complete denture analyzed by optical coherence tomography

      Meda L. Negrutiu, Cosmin Sinescu, Carmen Todea et al. The complete dentures are currently made using different technologies. In order to avoid deficiencies of the prostheses made using the classical technique, several alternative systems and procedures were imagined, directly related to the material used and also to the manufacturing technology. Thus, ... [Proc. SPIE Int. Soc. Opt. Eng. 6843, 68430R (2008)] published Mon Feb 11, 2008.
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    5. Statistics of the depth-scan photocurrent in time-domain optical coherence tomography

      We derive the time-variant second-order statistics of the depth-scan photocurrent in time-domain optical coherence tomography (TD-OCT) systems using polarized thermal light sources and superluminescent diodes (SLDs). Since the asymptotic-joint-probability-distribution function (JPDF) of the ... [J. Opt. Soc. Am. A 25, 16-20 (2008)]
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    6. Optical-coherence tomography, extension to imaging of low coherence interferometry

      Adrian Gh. Podoleanu, Radu G. Cucu, John A. Rogers et al. Results are presented in using low coherence interferometry in quantifying the reflectivity and imaging of different objects, such as tissue, paintings and fruits. All images have been obtained using en-face flying spot technology. This allows simultaneous generation of optical coherence tomography ... [Proc. SPIE Int. Soc. Opt. Eng. 6785, 67851I (2007)] published Wed Aug 1, 2007.
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    7. Optical coherence tomography for art conservation and archaeology

      Haida Liang, Borislava Peric, Michael Hughes et al. Optical coherence tomography (OCT) is a fast scanning Michelson interferometer originally designed for in vivo imaging of the eye. In 2004, our group along with two other groups first reported the application of OCT to art conservation and archaeology. Since that time we have been conducting a proje ... [Proc. SPIE Int. Soc. Opt. Eng. 6618, 661805 (2007)] published Mon Jul 16, 2007.
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    8. Optical mapping apparatus with optimized OCT configuration

      OCT apparatus includes an interferometer, having an input beam splitter and a 50/50 output splitter. The splitting ratio of the input splitter may be optimized depending on the source power of light source and on the mismatch of the balanced receiver. The input splitter is a plate beam-splitter to minimize the stray reflected light in the interferometer and allow sequential operation of the apparatus in the OCT or in the confocal regime. The switching between the two regimes may be at will, or synchronous with the en-face scanning which results in quasi-simultaneous OCT/confocal imaging or in alternatives frames ...
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    9. En-face optical coherence tomography – a novel application of non-invasive imaging to art conservation

      En-face optical coherence tomography – a novel application of non-invasive imaging to art conservation
      Optical Coherence Tomography (OCT) is an optical interferometric technique developed mainly for in vivo imaging of the eye and biological tissues. In this paper, we demonstrate the potential of OCT for non-invasive examination of museum paintings. Two en-face scanning OCT systems operating at 850 nm and 1300 nm were used to produce B-scan and C-scan images at typical working distances of 2 cm. The 3D images produced by the OCT systems show not only the structure of the varnish layer but also the paint layers and underdrawings (preparatory drawings under the paint layers). The highest ever resolution and dynamic range ...
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    10. Apparatus For Optical Coherence Tomography (Oct) (Wo 2004/102112)

      Apparatus For Optical Coherence Tomography (Oct) (Wo 2004/102112)
      OCT apparatus includes an interferometer, having an input beam splitter and a 50/50 output splitter. The splitting ratio of the input splitter may be optimized depending on the source power of light source and on the mismatch of the balanced receiver. The input splitter is a plate beam-splitter to minimize the stray reflected light in the interferometer and allow sequential operation of the apparatus in the OCT or in the confocal regime. The switching between the two regimes may be at will, or synchronous with the en-face scanning which results in quasi-simultaneous OCT/confocal imaging or in alternatives frames ...
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      Mentions: Optos
    49-58 of 58 « 1 2 3
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    1. (55 articles) University of Kent
    2. (20 articles) Victor Babes University of Medicine and Pharmacy
    3. (5 articles) New York Eye and Ear Infirmary
    4. (5 articles) Optos
    5. (2 articles) University Fernando Pessoa
    6. (2 articles) State University of New York at Buffalo
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