1. Huikai K. Xie

    0 Comments Leave a Comment

    1-15 of 39 1 2 3 »
    1. Mentioned In 39 Articles

    2. 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 ...
      Read Full Article
      Mentions: Huikai K. Xie
    3. Miniature multimodal endoscopic probe based on double-clad fiber

      Miniature multimodal endoscopic probe based on double-clad fiber
      Optical coherence tomography (OCT) can obtain light scattering properties with a high resolution, while photoacoustic imaging (PAI) is ideal for mapping optical absorbers in biological tissues, and ultrasound (US) could penetrate deeply into tissues and provide elastically structural information. It is attractive and challenging to integrate these three imaging modalities into a miniature probe, through which, both optical absorption and scattering information of tissues as well as deep-tissue structure can ...
      Read Full Article
    4. Miniature Endoscope for Multimodal Imaging

      Miniature Endoscope for Multimodal Imaging
      A single miniature endoscope capable of concurrently probing multiple contrast mechanisms of tissue in high resolution is highly attractive, as it makes it possible for providing complementary, more complete tissue information on internal organs hard to access. Here we describe such a miniature endoscope only 1 mm in diameter that integrates photoacoustic imaging (PAI), optical coherence tomography (OCT), and ultrasound (US). The integration of PAI/OCT/US allows for high-resolution ...
      Read Full Article
    5. Miniature probe integrating optical-resolution photoacoustic microscopy, optical coherence tomography, and ultrasound imaging: proof-of-concept

      Miniature probe integrating optical-resolution photoacoustic microscopy, optical coherence tomography, and ultrasound imaging: proof-of-concept
      In this Letter, we present a novel tri-modal miniature side-view probe, through which optical-resolution photoacoustic microscopy (OR-PAM), optical coherence tomography (OCT), and pulse-echo ultrasound (US) images can be coaxially acquired and displayed simultaneously. The probe consists of a common optical path for OR-PAM (light delivery) and OCT (light delivery/detection), and a 40-MHz unfocused ultrasound transducer for OR-PAM (photoacoustic detection) and US (ultrasound transmission/receiving) with an overall diameter of ...
      Read Full Article
    6. Electrothermal microactuator for large vertical displacement without tilt or lateral shift

      Electrothermal microactuator for large vertical displacement without tilt or lateral shift
      A microactuator for displacing a platform vertically with respect to a substrate includes a first rigid frame, a first flexible bimorph beam connecting the first frame to the substrate, a second rigid frame, a second flexible bimorph beam connecting the second frame to the first frame, and a third flexible bimorph beam connecting a platform to the second frame. Activation of the first, second, and third flexible bimorph beams allows ...
      Read Full Article
    7. Method and apparatus for providing high-fill-factor micromirror/micromirror arrays with surface mounting capability

      Method and apparatus for providing high-fill-factor micromirror/micromirror arrays with surface mounting capability
      Embodiments of the subject invention relate to micromirror devices and methods of fabricating a micromirror/micromirror array. According to an embodiment, micromirrors can be fabricated from a semiconductor substrate where after forming actuators and bonding pads on a front side of the semiconductor substrate, the device is flipped over to have a portion of the back side of the substrate removed and formed to become the mirror plate surface. The ...
      Read Full Article
      Mentions: Huikai K. Xie
    8. Measurement of viscoelastic properties in multiple anatomical regions of acute rat brain tissue slices

      Measurement of viscoelastic properties in multiple anatomical regions of acute rat brain tissue slices
      Mechanical property data for brain tissue are needed to understand the biomechanics of neurological disorders and response of the brain to different mechanical and surgical forces. Most studies have characterized mechanical behavior of brain tissues over large regions or classified tissue properties for either gray or white matter regions only. In this study, spatially heterogeneous viscoelastic properties of ex vivo rat brain tissue slices were measured in different anatomical regions ...
      Read Full Article
    9. Correction of image distortions in endoscopic optical coherence tomography based on two-axis scanning MEMS mirrors

      Correction of image distortions in endoscopic optical coherence tomography based on two-axis scanning MEMS mirrors
      ...ublished: September 6, 2013 Citation Donglin Wang, Peng Liang, Sean Samuelson, Hongzhi Jia, Junshan Ma, and Huikai Xie, "Correction of image distortions in endoscopic optical coherence tomography based on two-axis scan...
      Read Full Article
    10. Endoscopic swept-source optical coherence tomography based on a two-axis microelectromechanical system mirror

      Endoscopic swept-source optical coherence tomography based on a two-axis microelectromechanical system mirror
      A microelectromechanical system (MEMS) mirror based endoscopic swept-source optical coherence tomography (SS-OCT) system that can perform three-dimensional (3-D) imaging at high speed is reported. The key component enabling 3-D endoscopic imaging is a two-axis MEMS scanning mirror which has a 0.8 0.8 mm 2 mirror plate and a 1.6 1.4 mm 2 device footprint. The diameter of the endoscopic probe is only 3.5 mm. The ...
      Read Full Article
    11. A Tip-Tilt-Piston Micromirror With Symmetrical Lateral-Shift-Free Piezoelectric Actuators

      A Tip-Tilt-Piston Micromirror With Symmetrical Lateral-Shift-Free Piezoelectric Actuators
      In this paper, we present the design, fabrication, and characterization of a high-fill-factor tip-tilt-piston micromirror actuated by four symmetrical lateral-shift-free (LSF) piezoelectric actuators. Lead zirconate titanate (PZT) is the piezoelectric material deposited using a sol-gel process. The micromirror can operate in both piston and rotation modes. At the piston mode, the measured resonant frequency is 990 Hz. An 18.3-m piston displacement is obtained by applying 5 Vdc to four ...
      Read Full Article
    12. Miniature probe combining optical-resolution photoacoustic microscopy and optical coherence tomography for in vivomicrocirculation study

      Miniature probe combining optical-resolution photoacoustic microscopy and optical coherence tomography for in vivomicrocirculation study
      ...February 17, 2013 Manuscript Accepted: February 21, 2013 Published: March 14, 2013 Citation Lei Xi, Can Duan, Huikai Xie, and Huabei Jiang, "Miniature probe combining optical-resolution photoacoustic microscopy and optic...
      Read Full Article
    13. 1-15 of 39 1 2 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. About Huikai K. Xie

    Huikai K. Xie

    Huikai Xie is currently a professor at the Department of Electrical and Computer Engineering at the University of Florida. He received his master's degree in electro-optics from Tufts University in 1998 and his Ph.D. degree in electrical and computer engineering from Carnegie Mellon University in 2002. He also holds BS and MS degrees both in electronic engineering from Beijing Institute of Technology. He was a research faculty at the Institute of Microelectronics at Tsinghua University, Beijing, China.

  3. Quotes

    1. Eighty-five percent of cancers originate from the epithelium, which is about two millimeters deep.
      In New Endoscope Sees What Lies Beneath: An infrared-based endoscope scans tissue below the surface.