1. Sebastian Marschall

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    1. Mentioned In 11 Articles

    2. Semiconductor Lasers and Diode-based Light Sources for Biophotonics (Textbook)

      Semiconductor Lasers and Diode-based Light Sources for Biophotonics (Textbook)
      Semiconductor lasers are small, reliable, low cost, high-performance and user-friendly optical devices which make them highly suitable for a variety of biomedical applications. This edited book gathers experts in the field to cover the fundamentals and technology advances of semiconductor lasers and diode-based lasers with a focus on their applications in medical optics and biophotonics including edge-emitting semiconductor lasers and light emitting diodes, Q-switched and mode-locked lasers, quantum cascade lasers ...
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    3. Skin Cancer A Practical Approach (Textbook)

      Skin Cancer A Practical Approach (Textbook)
      Optical coherence tomography (OCT) has developed rapidly since its first realisation in medicine and is currently an emerging technology in the diagnosis of skin disease. OCT is an interferometric technique that detects reflected and backscattered light from tissue and is often described as the optical analogue to ultrasound. The inherent safety of the technology allows for in vivo use of OCT in patients. The main strength of OCT is the ...
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    4. Retinal polarization-sensitive optical coherence tomography at 1060 nm with 350 kHz A-scan rate using an Fourier domain mode locked laser

      Retinal polarization-sensitive optical coherence tomography at 1060 nm with 350 kHz A-scan rate using an Fourier domain mode locked laser
      We present a novel, high-speed, polarization-sensitive, optical coherence tomography set-up for retinal imaging operating at a central wavelength of 1060 nm which was tested for in vivo imaging in healthy human volunteers. We use the system in combination with a Fourier domain mode locked laser with active spectral shaping which enables the use of forward and backward sweep in order to double the imaging speed without a buffering stage. With ...
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    5. Feature Of The Week 1/13/13: Technical University of Denmark Publishes Detailed Quantitative Analysis of 1060nm Window for Optimal OCT Retinal Imaging

      Feature Of The Week 1/13/13: Technical University of Denmark Publishes Detailed Quantitative Analysis of 1060nm Window for Optimal OCT Retinal Imaging
      ...Mathematica script. If interested, contact Sebastian Marschall or Peter E. Andersen.For more information see recent Article. Courtesy Sebastian Marschall and Peter Andersen from Technical University of Denmark....
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    6. Investigation of the impact of water absorption on retinal OCT imaging in the 1060 nm range

      Investigation of the impact of water absorption on retinal OCT imaging in the 1060 nm range
      Recently, the wavelength range around 1060 nm has become attractive for retinal imaging with optical coherence tomography (OCT), promising deep penetration into the retina and the choroid. The adjacent water absorption bands limit the useful bandwidth of broadband light sources, but until now, the actual limitation has not been quantified in detail. We have numerically investigated the impact of water absorption on the axial resolution and signal amplitude for a ...
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    7. High-speed polarization-sensitive OCT at 1060 nm using a Fourier domain mode-locked swept source

      High-speed polarization-sensitive OCT at 1060 nm using a Fourier domain mode-locked swept source
      Optical coherence tomography (OCT) in the 1060nm range is interesting for in vivo imaging of the human posterior eye segment (retina, choroid, sclera), as it permits a long penetration depth. Complementary to structural images, polarization-sensitive OCT (PS-OCT) images visualize birefringent, polarization-maintaining or depolarizing areas within the sample. This information can be used to distinguish retinal layers and structures with different polarization properties. High imaging speed is crucial for imaging ocular ...
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    8. Broadband Fourier domain mode-locked laser for optical coherence tomography at 1060 nm

      Broadband Fourier domain mode-locked laser for optical coherence tomography at 1060 nm
      Optical coherence tomography (OCT) in the 1060nm range is interesting for in vivo imaging of the human posterior eye segment (retina, choroid, sclera) due to low absorption in water and deep penetration into the tissue. Rapidly tunable light sources, such as Fourier domain mode-locked (FDML) lasers, enable acquisition of densely sampled three-dimensional datasets covering a wide field of view. However, semiconductor optical amplifiers (SOAs)-the typical laser gain media for ...
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    9. Frequency-swept laser light source at 1050 nm with higher bandwidth due to multiple semiconductor optical amplifiers in series

      We report on the development of an all-fiber frequency-swept laser light source in the 1050 nm range based on semiconductor optical amplifiers (SOA) with improved bandwidth due to multiple gain media. It is demonstrated that even two SOAs with nearly equal gain spectra can improve the performance of ... [Proc. SPIE 7168, 716824 (2009)] published Fri Feb 20, 2009.
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  2. About Sebastian Marschall

    Sebastian Marschall

    Sebastian Marschall is a postoctorall fellow at the University of Waterloo, Canada.