YuanXian Zhang

Yunnan University, Kunming, Yunnan, China

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Publications (2)2.13 Total impact

  • Rui Yang, Apeng Yun, Yuanxian Zhang, Xiaoyun Pu
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    ABSTRACT: The quantum interpretation of whispering gallery modes in a cylindrical optical microcavity is presented in analogy with quantum mechanical theory. The formulas for the resonance shifts caused by a small change in correlative refractive index are derived. Then they are applied to two applications of the cylindrical microcavity to probe the change of surrounding medium and the nonlinear effect of cavity's surface.
    Optik - International Journal for Light and Electron Optics 05/2011; 122(10):900-909. · 0.77 Impact Factor
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    ABSTRACT: The polarization properties of an evanescent-wave pumped Whispering Gallery Mode (WGM) fibre laser have been investigated. It is found that there are two kinds of polarization lasing beam emitting from the evanescent-wave pumped WGM fibre laser under two different pump conditions. When the pump beam is strictly along the axial direction of an optical fibre, the lasing emission is transverse electric wave and the electrical vectors at emitting points are along the radial direction of the fibre, which forms a special radial polarization radiation. However, when the pump beam deviates from the axial direction of the fibre, both transverse electric and transverse magnetic waves exist in the lasing emission, which forms a mixed polarization radiation with radial and axial polarized elements. Based on lasing radiation mechanism of evanescent-wave pumped WGM fibre laser, the observed polarization properties are well explained.
    Chinese Science Bulletin 03/2010; 55(7):567-572. · 1.37 Impact Factor