1. Articles from Bin Zhang

    1-4 of 4
    1. Supercontinuum generation in polarization maintaining photonic crystal fibers using nanosecond pulses

      Supercontinuum generation in polarization maintaining photonic crystal fibers using nanosecond pulses
      We generate a flat, polarized and single mode Supercontinuum (SC) spanning at least from 600nm to 1700nm in a 20m length of highly refringent photonic crystal fibers (PCFs) pumped by a 1064 nm nanosecond microchip laser. The spectrum and polarization properties of the SC are investigated experimentally. The experimental results and the analysis provide useful information that helps to optimize and tune the properties of the polarized SC sources.
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    2. Mid-infrared supercontinuum generation in arsenic trisulfide microstructured optical fibers

      Mid-infrared supercontinuum generation in arsenic trisulfide microstructured optical fibers
      The dispersion characteristics of Arsenic Trisulfide As2S3 chalcogenide glass were analyzed and a kind of As2S3 microstructured optical fiber was designed to shift the zero dispersion wavelength from longer than 4 μm to around 2 μm. The supercontinuum generation in the designed fiber with selected pump wavelengths and pulse durations were simulated through numerically solving the Generalized Nonlinear Schrdinger Equation. The results reveal that the broadest supercontinuum covering 1.1 μm to 5.5 μm can be obtained with pump laser with duration 150 fs centered at 2.0 μm which is slightly longer than the first zero dispersion wavelength ...
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    3. Visible Supercontinuum Generation with Sub-nanosecond 532nm Pulses in All-Solid Photonic Bandgap Fiber

      Visible Supercontinuum Generation with Sub-nanosecond 532nm Pulses in All-Solid Photonic Bandgap Fiber
      An all-solid photonic bandgap fiber with the first bandgap from 450nm to 900nm was designed for visible supercontinuum generation. Sub-nanosecond pulses from 532nm microchip laser were launched into this fiber, and the supercontinuum from 532nm to 900nm was obtained. The bright single-mode visible light beam was observed, with the output power of 30mW.
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    4. Comparison of multifocal visual evoked potential, standard automated perimetry and optical coherence tomography in assessing visual pathway in multiple sclerosis patients

      Background: Multifocal visual evoked potentials (mfVEP) measure local response amplitude and latency in the field of vision. Objective: To compare the sensitivity of mfVEP, Humphrey visual field (HVF) and optical coherence tomography (OCT) in detecting visual abnormality in multiple sclerosis (MS) patients. Methods: mfVEP, HVF, and OCT (retinal nerve fiber layer [RNFL]) were performed in 47 MS-ON eyes (last optic neuritis [ON] attack 6 months prior) and 65 MS-no-ON eyes without ON history. Criteria to define an eye as abnormal were: (1) mfVEP amplitude/latency – either amplitude or latency probability plots meeting cluster criteria with 95% specificity; (2) mfVEP amplitude ...
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    1-4 of 4
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  2. Topics in the News

    1. (1 articles) University of Houston
    2. (1 articles) Peking University
    3. (1 articles) Han Cheng
    4. (1 articles) Sungkyunkwan University
    5. (1 articles) Texas A&M University
    6. (1 articles) FDA
    7. (1 articles) University of Southern California
    8. (1 articles) University of Freiburg
    9. (1 articles) Joon Mo Kim
    10. (1 articles) Brian E. Applegate
    11. (1 articles) Wihan Kim
    12. (1 articles) Javier A. Jo
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