1. Mattijs de Groot

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    1. Mentioned In 7 Articles

    2. Fiber-based polarization-sensitive OCT of the human retina with correction of system polarization distortions

      Fiber-based polarization-sensitive OCT of the human retina with correction of system polarization distortions
      In polarization-sensitive optical coherence tomography (PS-OCT) the use of single-mode fibers causes unpredictable polarization distortions which can result in increased noise levels and erroneous changes in calculated polarization parameters. In the current paper this problem is addressed by a new Jones matrix analysis method that measures and corrects system polarization distortions as a function of wavenumber by spectral analysis of the sample surface polarization state and deeper located birefringent tissue ...
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    3. Feature Of The Week 7/21/13: VU University Amsterdam Demonstrates Focus-Extension by Depth-Encoded Synthetic Aperture in Optical Coherence Tomography

      Feature Of The Week 7/21/13: VU University Amsterdam Demonstrates Focus-Extension by Depth-Encoded Synthetic Aperture in Optical Coherence Tomography
      Optical coherence tomography (OCT) is an interferometric technique that provides cross-sectional images of biological tissue. It has become an essential tool for clinical diagnosis and disease monitoring in ophthalmology and it shows great potential in other clinical areas such as dermatology, cardiology and gastroenterology. The axial resolution in OCT is provided by the coherence gate and is invariant over the full image depth. The lateral resolution is determined by the ...
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    4. Focus-extension by depth-encoded synthetic aperture in Optical Coherence Tomography

      Focus-extension by depth-encoded synthetic aperture in Optical Coherence Tomography
      We present a novel method to extend the depth-of-focus of Optical Coherence Tomography (OCT). OCT is an interferometric imaging technique that provides depth-resolved scattering information. The axial resolution in OCT is provided by the coherence gate and is invariant over the full image depth. The lateral resolution is determined by the beam parameters such as wavelength and numerical aperture. The Rayleigh range determines the depth range over which the lateral ...
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    5. High speed miniature motorized endoscopic probe for optical frequency domain imaging

      High speed miniature motorized endoscopic probe for optical frequency domain imaging
      We present a miniature motorized endoscopic probe for Optical Coherence Tomography with an outer diameter of 1.65 mm and a rotation speed of 3,00012,500 rpm. This is the smallest motorized high speed OCT probe to our knowledge. The probe has a motorized distal end which provides a significant advantage over proximally driven probes since it does not require a drive shaft to transfer the rotational torque to ...
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  2. About Mattijs de Groot

    Mattijs de Groot is a researcher at VU University Amsterdam.