Hongyi Chen

Publications (3)10.57 Total impact

• Article: Design for the optical retardation in broadband zero-order half-wave plates.

  Jin Liu, Yi Cai, Hongyi Chen, Xuanke Zeng, Da Zou, Shixiang Xu
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  ABSTRACT: This paper presents a novel design for broadband zero-order half-wave plates to eliminate the first-order or up to second-order wavelength-dependent birefringent phase retardation (BPR) with 2 or 3 different birefringent materials. The residual BPRs of the plates increase monotonously with the wavelength deviation from a selected wavelength, so the plates are applicable to the broadband light pulses which gather most of the light energy around their central wavelengths. The model chooses the materials by the birefringent dispersion coefficient and evaluates the performances of the plates by the weighted average of the absolute value of residual BPR in order to emphasize the contributions of the incident spectral components whose possess higher energies.
  Optics Express 04/2011; 19(9):8557-64. · 3.59 Impact Factor
• Article: Negative reflection of waves at planar interfaces associated with a uniaxial medium.

  Hongyi Chen, Shixiang Xu, Jingzhen Li
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  ABSTRACT: Reflection of waves at planar interfaces associated with a uniaxial medium is theoretically analyzed by examining the boundary condition and the dispersion relation. Simple global expressions of incident and reflected angles of both wave vectors and ray vectors are derived. The relations between them are obtained. It is also shown that negative reflection can be realized in all uniaxial media under certain conditions. Our results offer considerable potential device applications of uniaxial media.
  Optics Letters 11/2009; 34(21):3283-5. · 3.40 Impact Factor
• Article: Omnidirectional constant transmission and negative Brewster angle at planar interfaces associated with a uniaxial medium.

  Hongyi Chen, Shixiang Xu, Jingzhen Li
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  ABSTRACT: This paper presents our detailedly theoretical analyses on omnidirectional constant transmission and negative Brewster angle at planar interfaces associated with a uniaxial medium. The amplitude reflection and transmission coefficients at planar interfaces associated with uniaxial media are derived by examining the boundary condition and the dispersion relation. It is found that under certain conditions, the coefficients are constants independent of the incident angle. Another interesting phenomenon is that an interface between isotropic and uniaxial media can exhibit negative refraction under Brewster condition. Our results offer considerable potential device applications of uniaxial media.
  Optics Express 10/2009; 17(22):19791-7. · 3.59 Impact Factor