1. Xiangyang Zhang

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    1. Mentioned In 7 Articles

    2. Optimization of the Source Power Usage in Spectral Domain Optical Coherence Tomography

      Optimization of the Source Power Usage in Spectral Domain  Optical Coherence Tomography
      Source power consumption and system sensitivity of a spectrometer based optical coherence tomography (SD-OCT) system are investigated. Our study shows that the performance of SD-OCT system can be classified into two categories based on the beam splitting ratio R between the sample and reference rams in the Michelson interferometer. For the classic SD-OCT configuration, R is less than 1.0, and improvement of sample light collection efficiency through reducing R ...
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    3. Depth-dependent dispersion compensation for full-depth OCT image

      Depth-dependent dispersion compensation for full-depth OCT image
      A depth-dependent dispersion compensation algorithm for enhancing the image quality of the Fourier-domain optical coherence tomography (OCT) is presented. The dispersion related with depth in the sample is considered. Using the iterative method, an analytical formula for compensating the depth-dependent dispersion in the sample is obtained. We apply depth-dependent dispersion compensation algorithm to process the phantom images andin vivoimages. Using sharpness metric based on variation coefficient to compare the results ...
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    4. Optical coherence photoacoustic microscopy: accomplishing optical coherence tomography and photoacoustic microscopy with a single light source

      Optical coherence photoacoustic microscopy: accomplishing optical coherence tomography and photoacoustic microscopy with a single light source
      We developed optical coherence photoacoustic microscopy (OC-PAM) to demonstrate that the functions of optical coherence tomography (OCT) and photoacoustic microscopy (PAM) can be achieved simultaneously by using a single illuminating light source. We used a pulsed broadband laser centered at 580 nm and detected the absorbed photons through photoacoustic detection and the back-scattered photons with an interferometer. In OC-PAM, each laser pulse generates both one OCT A-line and one PAM ...
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    5. Visible light optical coherence tomography for in vivo imaging the spectral contrasts of the retinal nerve fiber layer

      Visible light optical coherence tomography for in vivo imaging the spectral contrasts of the retinal nerve fiber layer
      The ultimate goal of the study is to provide an imaging tool to detect the earliest signs of glaucoma before clinically visible damage occurs to the retinal nerve fiber layer (RNFL). Studies have shown that the optical reflectance of the damaged RNFL at short wavelength ( reduced much more than that at long wavelength, which provides spectral contrasts for imaging the earliest damage to the RNFL. To image the spectral contrasts ...
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    6. Dual-band spectral-domain optical coherence tomography for in vivo imaging the spectral contrasts of the retinal nerve fiber layer

      Dual-band spectral-domain optical coherence tomography for in vivo imaging the spectral contrasts of the retinal nerve fiber layer
      ...) Medical optics and biotechnology : Optical diagnostics for medicine ToC Category: Category Pending Citation Xiangyang Zhang, Jianming Hu, Robert W. Knighton, Xiang-Run Huang, Carmen A. Puliafito, and Shuliang Jiao, "Du...
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  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 Xiangyang Zhang

    Xiangyang Zhang is in the Department of Ophthalmology at the Keck School of Medicine at the University of Southern California.