1. Articles from Liang Zhou

    1-3 of 3
    1. Ultralow-voltage electrothermal MEMS based fiber-optic scanning probe for forward-viewing endoscopic OCT

      Ultralow-voltage electrothermal MEMS based fiber-optic scanning probe for forward-viewing endoscopic OCT

      We report an ultralow-voltage, electrothermal (ET) micro-electro-mechanical system (MEMS) based probe for forward-viewing endoscopic optical coherence tomography (OCT) imaging. The fully assembled probe has a diameter of 5.5 mm and a length of 55 mm, including the imaging optics and a 40 mm long fiber-optic cantilever attached on a micro-platform of the bimorph ET MEMS actuator. The ET MEMS actuator provides a sufficient mechanical actuation force as well as a large vertical displacement, achieving up to a 3 mm optical scanning range with only a 3

      Read Full Article
    2. A miniature endoscopic optical coherence tomography probe based on C-lens

      A miniature endoscopic optical coherence tomography probe based on C-lens

      We present a novel miniature endoscopic OCT probe based on an electrothermal microelectromechanical (MEMS) mirror and a C-lens. The MEMS mirror has a relatively large mirror plate of 0.5 mm×0.5 mm on a small chip size of 1.5 mm×1.3 mm, leading to the outer diameter of the endoscopic probe down to only 2.5 mm so that the probe is capable of being inserted through the biopsy channel of a conventional endoscope. A long focal length of 12 mm is achieved by properly designing the C-lens. Compared to commonly used GRIN lenses, C-lenses have ...

      Read Full Article
    3. Circumferential-scanning endoscopic optical coherence tomography probe based on a circular array of six 2-axis MEMS mirrors

      Circumferential-scanning endoscopic optical coherence tomography probe based on a circular array of six 2-axis MEMS mirrors

      We present a novel circumferential-scan endoscopic optical coherence tomography (OCT) probe by using a circular array of six electrothermal microelectromechanical (MEMS) mirrors and six C-lenses. The MEMS mirrors have a 0.5 mm × 0.5 mm mirror plate and a chip size of 1.5 mm × 1.3 mm. Each MEMS mirror can scan up to 45° at a voltage of less than 12 V. Six of those mirrors have been successfully packaged to a probe head; full circumferential scans have been demonstrated. Furthermore, each scan unit is composed of a MEMS mirror and a C-lens and the six scan ...

      Read Full Article
      Mentions: Huikai K. Xie
    1-3 of 3
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Topics in the News

    1. (6 articles) National Institutes of Health
    2. (2 articles) University of Florida
    3. (2 articles) Huikai K. Xie
    4. (2 articles) UC Irvine
    5. (2 articles) Oregon Health & Science University
    6. (2 articles) Zhongping Chen
    7. (2 articles) Yifan Jian
    8. (1 articles) Johns Hopkins University
    9. (1 articles) Tsinghua University
    10. (1 articles) Xingde Li
    11. (1 articles) WiO Technology Limited
    12. (1 articles) UCLA
    13. (1 articles) University of L├╝beck
    14. (1 articles) Pusan National University
    15. (1 articles) Evelyn Regar
    16. (1 articles) Antonios Karanasos
  3. Popular Articles

  4. Picture Gallery

    Circumferential-scanning endoscopic optical coherence tomography probe based on a circular array of six 2-axis MEMS mirrors A miniature endoscopic optical coherence tomography probe based on C-lens Ultralow-voltage electrothermal MEMS based fiber-optic scanning probe for forward-viewing endoscopic OCT The Effect of Anti-Tubercular Drugs on Retinal Nerve Fiber Layer Thickness Using Optical Coherence Tomography A Cross-sectional Optical Coherence Tomography Study in Patients on Taxane-based Therapy and A Case Report with the Literature Review Association of systemic inflammatory biomarkers with morphological characteristics of the coronary atherosclerotic plaque by intravascular optical coherence tomography. OCT angiography improves views of retina blood flow Real-time retinal layer segmentation of OCT Volumes with GPU and Deep learning Baylor College of Medicine Receives a 2020 NIH Grant for Biomechanics of Early Mammalian Cardiogenesis University of Houston Receives a 2020 NIH Grant for Biomechanics of Neural Tube Development using Brillouin-OCT Multimodality Oregon Health and Sciences University Receives a 2020 NIH Grant  for Artificial Intelligence Assisted Panoramic Optical Coherence Tomography for Retinopathy of Prematurity UC Irvine Receives a 2020 NIH Grant for In Vivo Imaging and Quantification of Cilia Beating Dynamics Using Phase-Resolved Optical Imaging Technology