1. Articles from Yan Sun

    1-3 of 3
    1. A Step-Index Silicate Nonlinear Fiber With All Normal Flattened Dispersion for Coherent Supercontinuum

      A Step-Index Silicate Nonlinear Fiber With All Normal Flattened Dispersion for Coherent Supercontinuum

      A step-index silicate fiber with all normal flat dispersion was fabricated. Coherent supercontinuum (SC) spectrum spanning 1200 to 2000 nm was generated in a 5 cm silicate fiber pumped at 1560 nm. The numerical simulation result agreed with the experiment result. Also, highly coherent SC spectrum spanning from 1100 to 2100 nm with flatness <7 dB generated in the fiber with 57 kW pumping power according to simulation. The step-index silicate fiber is not only easy to prepare but also a promising candidate to achieve all-fiber structure for coherent SC.

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    2. Multifocal electroretinogram in non-pathological myopic subjects: correlation with optical coherence tomography

      Multifocal electroretinogram in non-pathological myopic subjects: correlation with optical coherence tomography

      AIM : To investigate the changes of retinal function in non-pathological myopic subjects using multifocal electroretinography (mfERG) and to correlate the data with the central macular thickness obtained using optical coherence tomography (OCT). METHODS : One hundred and thirteen subjects (113 eyes) with age range from 18 to 35y were enrolled in the study. The subjects were divided into four groups according to spherical equivalent (SE) and axial length (AL): emmetropia group (EG, n=31; SE: +0.75 to -0.50 D; AL: 22 to 24 mm), low and medium myopia group (LMMG, n=26; SE: >-0.50 to -6.00 D ...

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    3. Measurement of retinal thickness in macular region of high myopic eyes using spectral domain OCT

      Measurement of retinal thickness in macular region of high myopic eyes using spectral domain OCT

      AIM: To investigate the changes of retinal thickness in macula of high myopic eyes using spectral domain optical coherence tomography (OCT). METHODS: Middle-aged and young myopic patients were divided into three groups according to their refractive error/axial length:low and medium myopia group (LMMG), high myopia group (HMG) and super high myopia group (SHMG). Cirrus HD-OCT was used to evaluate total average macular thickness, central subfield thickness, inner/outer macular thickness and macular volume. The differences among experimental groups were analyzed by one-factor analysis of variance. Associations between macular thickness and refractive error/axial length were analyzed by Pearson ...

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    1-3 of 3
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    1. (2 articles) Zeiss Cirrus HD-OCT
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    Measurement of retinal thickness in macular region of high myopic eyes using spectral domain OCT Multifocal electroretinogram in non-pathological myopic subjects: correlation with optical coherence tomography A Step-Index Silicate Nonlinear Fiber With All Normal Flattened Dispersion for Coherent Supercontinuum Research Assistant in Optical Coherence Tomography (OCT) to Image the Eye at University of Kent Comparison of retinal vessel diameter measurements from swept-source OCT angiography and adaptive optics ophthalmoscope Chronic Stent Recoil in Severely Calcified Coronary Artery Lesions. A Serial Optical Coherence Tomography Study Migrated remnant bioresorbable scaffolds in a left main bifurcation lesion: Insights from optical coherence tomography Longitudinal Monitoring of Flow-Diverting Stent Tissue Coverage After Implant in a Bifurcation Model Using Neurovascular High-Frequency Optical Coherence Tomography Foveal crack sign: an optical coherence tomography sign preceding macular hole after vitrectomy for rhegmatogenous retinal detachment Forward genetic analysis using OCT screening identifies Sfxn3 mutations leading to progressive outer retinal degeneration in mice Optical coherence tomography characteristics of taxane-induced macular edema and other multimodal imaging findings Comparison of different morphologies of choroidal neovascularization evaluated by optical coherence tomography angiography in age‐related macular degeneration