1. Articles from S. Bargiel

    1-4 of 4
    1. Swept-source optical coherence tomography microsystem with an integrated Mirau interferometer and electrothermal micro-scanner

      Swept-source optical coherence tomography microsystem with an integrated Mirau interferometer and electrothermal micro-scanner

      In the rapid evolution of gastrointestinal endomicroscopy, optical coherence tomography (OCT) has found many diverse applications. Until recently, the micro-opto–electro-mechanical systems (MOEMS) technology has been playing a key role in shaping the miniaturization of these components. We report here, to the best of our knowledge, a novel endoscopic microsystem. It is based on a spectrally tuned MOEMS Mirau micro-interferometer integrated with micro-electro-mechanical systems (MEMS) electro-thermal micro-scanner, operating in the regime of swept-source (SS) OCT imaging. This Letter validates our initial proof-of-concept toward the development of such MOEMS probe and the presentation of experimental performances of the resulting SS-OCT microsystem. .

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    2. Technological platform for vertical multi-wafer integration of miniature imaging instruments

      Technological platform for vertical multi-wafer integration of miniature imaging instruments

      We describe a technological platform developed for miniaturization of optical imaging instruments, such as laser scanning confocal microscopes or Optical Coherence Tomography devices. The platform employs multi-wafer vertical integration approach, combined with integrated glass-based micro-optics and heterogeneous bonding and interconnecting technologies. In this paper we focus on the unconventional fabrication methods of monolithic micro-optical structures and components in borosilicate glass (e.g. micro beamsplitters, refractive microlenses) for optical beam shaping and routing. In addition, we present hybrid laser-assisted integration of glass ball microlenses on the silicon MEMS actuators for transmissive beam scanning as well as methods of electrical signals distribution ...

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    3. Optical design of a vertically integrated array-type Mirau-based OCT system

      Optical design of a vertically integrated array-type Mirau-based OCT system

      The presented paper shows the concept and optical design of an array-type Mirau-based OCT system for early diagnosis of skin cancer. The basic concept of the sensor is a full-field, full-range optical coherence tomography (OCT) sensor. The micro-optical interferometer array in Mirau configuration is a key element of the system allowing parallel imaging of multiple field of views (FOV). The optical design focuses on the imaging performance of a single channel of the interferometer array and the illumination design of the array. In addition a straylight analysis of this array sensor is given.

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    4. Looking for a new generation of MEMS-type confocal microscopes

      Looking for a new generation of MEMS-type confocal microscopes
      In the field of optical scanning microscopy the micro-scale or nano-scale samples are observed and analysed via large macro-tools, too bulky and heavy for individual use in specialised key missions such as in situ or in vivo measuring. A need for compact, robust scanning devices for endoscopic applications has stimulated the development of MEMS scanning mirrors for confocal imaging and for optical coherence tomography. The architecture of proposed on-chip confocal microscope is shown in Fig. 1 [1]. The individual microscope consists of two microlens scanner chips, a beamsplitter, a PIN detector and a pinhole aperture. The microlens scanner chips have ...
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    1-4 of 4
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  2. Topics in the News

    1. (2 articles) FEMTO-ST Institute
    2. (1 articles) University of Florida
    3. (1 articles) Huikai K. Xie
    4. (1 articles) Luc Froehly
    5. (1 articles) Harvard University
    6. (1 articles) Massachusetts General Hospital
    7. (1 articles) University of North Carolina
    8. (1 articles) Baylor College of Medicine
    9. (1 articles) Masamichi Takano
    10. (1 articles) Joel S. Schuman
    11. (1 articles) Ik-Kyung Jang
    12. (1 articles) Yoshiyasu Minami
    13. (1 articles) Donald L. Budenz
    14. (1 articles) Gadi Wollstein
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    Looking for a new generation of MEMS-type confocal microscopes Optical design of a vertically integrated array-type Mirau-based OCT system Technological platform for vertical multi-wafer integration of miniature imaging instruments Swept-source optical coherence tomography microsystem with an integrated Mirau interferometer and electrothermal micro-scanner High space-bandwidth in quantitative phase imaging using partially spatially coherent optical coherence microscopy and deep neural network Optical coherence tomography assessment of macrophages accumulation in non-ST-segment elevation acute coronary syndromes Early disability in ambulatory patients with multiple sclerosis: optical coherence tomography versus visual evoked potentials, a comparative study Dueling Deep Q-Network for Unsupervised Inter-frame Eye Movement Correction in Optical Coherence Tomography Volumes Atlas of Optical Coherence Tomography for Glaucoma (Textbook) In-vivo analysis of iron-gold composite nanoparticles as potential exogenous contrast agents for Magnetomotive Optical Coherence Tomography (MMOCT) Automatic Classification of Volumetric Optical Coherence Tomography Images via Recurrent Neural Network Noise-Powered Disentangled Representation for Unsupervised Speckle Reduction of Optical Coherence Tomography Images