1. Articles from Jin-Chul Ahn

    1-2 of 2
    1. In vivo monitoring laser tissue interaction using high resolution Fourier-domain optical coherence tomography

      In vivo monitoring laser tissue interaction using high resolution Fourier-domain optical coherence tomography

      Laser-induced therapies include laser ablation to remove or cut target tissue by irradiating high-power focused laser beam. These laser treatments are widely used tools for minimally invasive surgery and retinal surgical procedures in clinical settings. In this study, we demonstrate laser tissue interaction images of various sample tissues using high resolution Fourier-domain optical coherence tomography (Fd-OCT). We use a Q-switch diode-pumped Nd:YVO4 nanosecond laser (532nm central wavelength) with a 4W maximum output power at a 20 kHz repetition rate to ablate in vitro and in vivo samples including chicken breast and mouse ear tissues. The Fd-OCT system acquires time-series ...

      Read Full Article
      Mentions: Dae Yu Kim
    2. Development of 2-micron nonlinear frequency conversion laser system and tissue interaction monitoring using optical coherence tomography

      Development of 2-micron nonlinear frequency conversion laser system and tissue interaction monitoring using optical coherence tomography

      We report on development of optical parametric oscillator (OPO) based mid-infrared laser system, which utilizes periodically poled nonlinear crystal that was pumped by near-infrared (NIR) laser. We have obtained 8 W of mid-infrared average output at the injection current of 20A from a quasi-phase-matched OPO using external cavity configuration. The laser tissue ablation efficiency was investigated which is substantially affected by several parameters such as, optical fluence rate, wavelength of the laser source and the optical properties of target tissue. Wavelength and radiant exposure dependent tissue ablation dimension were quantified by using SD-OCT (spectral domain optical coherence tomography) and the ...

      Read Full Article
      Mentions: Dae Yu Kim
    1-2 of 2
  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. (2 articles) Dae Yu Kim
    2. (1 articles) Medical University of Vienna
    3. (1 articles) Harbin Medical University
    4. (1 articles) Université Pierre et Marie Curie
    5. (1 articles) University of Erlangen
    6. (1 articles) Wolfgang Drexler
    7. (1 articles) Adrian G. Podoleanu
    8. (1 articles) Mengyang Liu
    9. (1 articles) Bo Yu
    10. (1 articles) Rainer A. Leitgeb
    11. (1 articles) Angelika Unterhuber
  3. Popular Articles

  4. Picture Gallery

    Development of 2-micron nonlinear frequency conversion laser system and tissue interaction monitoring using optical coherence tomography In vivo monitoring laser tissue interaction using high resolution Fourier-domain optical coherence tomography Changes in the Retinal Microvasculature Measured Using Optical Coherence Tomography Angiography According to Age Direct en-face, speckle-reduced images using angular-compounded Master-Slave optical coherence tomography A case report of a recurrent early and late Bioresorbable vascular scaffold thrombosis: serial angiography and optical coherence tomography findings Optical coherence tomography angiography as a novel approach to contactless evaluation of sublingual microcirculation: A proof of principle study Functional optical coherence tomography and photoacoustic microscopy imaging for zebrafish larvae Plasma Ceramides in Relation to Coronary Plaque Characterization Determined by Optical Coherence Tomography Retinal neurodegeneration in patients with end-stage renal disease assessed by spectral-domain optical coherence tomography Swept-source optical coherence tomography by off-axis Fresnel transform digital holography with an output throughput of 10 Giga voxels per second in real-time Spectral Domain Optical Coherence Tomography Features HYPERREFLECTIVE FOVEAL SPOTS IN PATIENTS WITH VITREORETINAL ANOMALIES A Qualitative and Quantitative Analysis