1. Seok-Hyun Yun

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    1. Mentioned In 32 Articles

    2. Apparatus, method and system for generating optical radiation from biological gain media

      Apparatus, method and system for generating optical radiation from biological gain media
      In one exemplary embodiment, an apparatus can be provided which includes at least one biological medium that causes gain. According to another exemplary embodiment, an arrangement can be provided which is configured to be provided in an anatomical structure. This exemplary arrangement can include at least one emitter having a cross-sectional area of at most 10 microns within the anatomical structure, and which is configured to generate at least one ...
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    3. Apparatus, method and system for performing phase-resolved optical frequency domain imaging

      Apparatus, method and system for performing phase-resolved optical frequency domain imaging
      Apparatus, system and method are provided which utilize signals received from a reference and a sample. In particular, a radiation is provided which includes at least one first electro-magnetic radiation directed to the sample and at least one second electro-magnetic radiation directed to the reference. A frequency of the radiation varies over time. An interference can be detected between at least one third radiation associated with the first radiation and ...
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    4. Numerical model of optical coherence tomographic vibrography imaging to estimate corneal biomechanical properties

      Numerical model of optical coherence tomographic vibrography imaging to estimate corneal biomechanical properties
      Most techniques measuring corneal biomechanics in vivo are biased by side factors. We demonstrate the ability of optical coherence tomographic (OCT) vibrography to determine corneal material parameters, while reducing current prevalent restrictions of other techniques (such as intraocular pressure (IOP) and thickness dependency). Modal analysis was performed in a finite-element (FE) model to study the oscillation response in isolated thin corneal flaps/eye globes and to analyse the dependency of ...
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    5. Research Fellow (or Research assistant) Massachusetts General Hospital / Harvard Medical School , Cambridge, MA

      Research Fellow (or Research assistant) Massachusetts General Hospital / Harvard Medical School , Cambridge, MA
      Research Fellow (or Research assistant) Massachusetts General Hospital / Harvard Medical School , Cambridge, MA, United States Employer Description The Wellman Center for Photomedicine Job Description Yun Lab at Harvard Medical School and the Wellman Center for Photomedicine at MGH has one open position for postdoctoral fellow with PhD in the field of optical coherence tomography. More information, visit http://www2.massgeneral.org/wellman/faculty-yun-pi.htm or http:// www.intelon.org (Applications ...
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    6. Fast and accurate metrology of multi-layered ceramic materials by an automated boundary detection algorithm developed for optical coherence tomography data

      Fast and accurate metrology of multi-layered ceramic materials by an automated boundary detection algorithm developed for optical coherence tomography data
      Optical coherence tomography (OCT) is useful for materials defect analysis and inspection with the additional possibility of quantitative dimensional metrology. Here, we present an automated image-processing algorithm for OCT analysis of roll-to-roll multilayers in 3D manufacturing of advanced ceramics. It has the advantage of avoiding filtering and preset modeling, and will, thus, introduce a simplification. The algorithm is validated for its capability of measuring the thickness of ceramic layers, extracting ...
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    7. Simultaneous 3D imaging of sound-induced motions of the tympanic membrane and middle ear ossicles

      Simultaneous 3D imaging of sound-induced motions of the tympanic membrane and middle ear ossicles
      Efficient transfer of sound by the middle ear ossicles is essential for hearing. Various pathologies can impede the transmission of sound and thereby cause conductive hearing loss. Differential diagnosis of ossicular disorders can be challenging since the ossicles are normally hidden behind the tympanic membrane (TM). Here we describe the use of a technique termed optical coherence tomography (OCT) vibrography to view the sound-induced motion of the TM and ossicles ...
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    8. CBORT 2013 OCT Symposium July 29th at Harvard Medical School Cambridge MA, USA

      CBORT 2013 OCT Symposium July 29th at Harvard Medical School Cambridge MA, USA
      OCT2013 the first international symposium hosted by the Center for Biomedical OCT Research and Translation at Harvard Medical School and Massachusetts General Hospital, will focus on the latest and greatest technical capabilities of OCT, provide an overview of the commercially available OCT systems, discuss advancements in numerous clinical application areas, and introduce emerging preclinical optical imaging techniques. The unique emphasis of technology and clinical utility presented in the symposium will ...
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    9. Methodist Hospital Research Institute receives NIH Grant for Multi-Scale Optical Imaging of the Cancer Vasculature and Tumor Microenvironment

      Methodist Hospital Research Institute receives NIH Grant for Multi-Scale Optical Imaging of the Cancer Vasculature and Tumor Microenvironment
      Methodist Hospital Research Institute receives a $301,316 NIH grant for Multi-Scale Optical Imaging of the Cancer Vasculature and Tumor Microenvironment. The principal investigator is Seok-Hyun (Andy) Yun. The program is part of a multi-year program that started in 2012 and ends in 2014. Below is a summary of the work. Core 2 will provide the five projects with a number of unique advanced optical systems; collaborate with the project ...
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    10. CBORT OCT Technical Foundations and Systematic Implementation Summer Workshop 2012 July 30-31st, Cambridge MA, USA.

      CBORT OCT Technical Foundations and Systematic Implementation Summer Workshop 2012 July 30-31st, Cambridge MA, USA.
      The Center for Biomedical OCT Research and Translation (CBORT), at Massachusetts General Hospital and Harvard Medical School is hosting its first annual OCT workshop, OCT: Technical Foundations and Systematic Implementation. The event will bring a highly select group of OCT engineers and researchers from academia and industry to Boston for intense theoretical and practical training of OCT principles and functionality. Lectures and hands on laboratory demos will be held by ...
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    11. SPIE Photonics West is set to grow -- again -- in 2012

      SPIE Photonics West is set to grow -- again -- in 2012
      BELLINGHAM, Washington, USA -- New biomedical optics treatments for cancer and other diseases and for restoring sight, the latest green photonics enabling sustainable energy solutions, and laser innovations for manufacturing, communications, and much more are on the program at SPIE Photonics West next January in San Francisco, California. Photonics West -- already the world's largest international conference and exhibition on industrial and medical applications of optics, lasers, and photonics -- will be ...
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    12. Methods And Arrangements For Analysis, Diagnosis, And Treatment Monitoring Of Vocal Folds By Optical Coherence Tomography

      Methods And Arrangements For Analysis, Diagnosis, And Treatment Monitoring Of Vocal Folds By Optical Coherence Tomography
      Exemplary embodiments of an apparatus and a method can be provided. For example, a first information can be obtained for at least one signal that is (i) at least partially periodic and (ii) associated with at least one structure. In addition, a second information associated with the structure can be generated at multiple time points within a single cycle of the at least one signal. The second information can include ...
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    13. System, method and arrangement which can use spectral encoding heterodyne interferometry techniques for imaging

      System, method and arrangement which can use spectral encoding heterodyne interferometry techniques for imaging
      Systems, arrangements and methods for obtaining three-dimensional imaging data are provided. For example, a broadband light source can provide a particular radiation. A first electro-magnetic radiation can be focused and diffracted, and then provided to at least one sample to generate a spectrally-encoded line. A second electro-magnetic radiation may be provided to a reference, which may include a double-pass rapidly-scanning optical delay, where the first and second electro-magnetic radiations can ...
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    14. 1-15 of 32 1 2 »
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  2. About Seok-Hyun Yun

    Seok-Hyun Yun

    Seok Hyun Yun received his Ph.D. degree in physics (optics) from KAIST, Korea, in 1997. He was a Chevening Scholar and visiting student at Optoelectronics Research Centre in University of Southampton, UK, in 1996. His PhD thesis research has led to a $68M-funded startup company in San Jose, CA, which was later acquired by LG-Nortel. In 1999-2003, he worked there as a founding member and manager. In 2003, moving his career to biomedical optics, he joined the Wellman Center for Photomedicine at Massachusetts General Hospital and HarvardMedical School. Currently, he is an Associate Professor at Harvard and affiliated faculty member at MIT (Health Sciences and Technology).

    Dr. Yun's primary research interest is developing novel light-based technologies for biomedical applications. Dr. Yun wrote more than 50 U.S. patents, many of which have been licensed, commercialized, and FDA approved. In particular, Dr. Yun has co-invented Fourier-domain optical coherence tomography (OCT). Besides problem- solving, Dr. Yun's research also embraces curiosity-driven projects without specific applications in mind. An example is biological cell lasers, which received accolades from the general public as well as the scientific community (see the Figure above)