Publications by authors named "Yuhao Jing"
Article Synopsis
- The study introduces an effective numerical implementation of the finite element method for modal analysis, utilizing symmetry operations like spatial and time symmetries.
- It rigorously derives boundary constraint conditions linked to these symmetry constraints and applies the method to analyze optical waveguides with intricate cross-sections.
- Results showcase a considerable performance boost, with a 23-fold increase in calculation speed for hollow-core fiber compared to traditional finite element methods, while also enhancing the classification and computation of modes based on symmetry.
Materials possessing an effective zero refractive index are often associated with Dirac-like cone dispersion at the center of the Brillouin zone (BZ). It has been reported the presence of hidden symmetry-enforced triply degenerate points [nexus points (NP)] away from the Brillouin zone center with the stacked dielectric photonic crystals. The spin-1 Dirac-like dispersion in the xy plane near the nexus point suggests a method for achieving zero refractive index materials.
View Article and Find Full Text PDFParticular waveguide structures and refractive index distribution can lead to specified degeneracy of eigenmodes. To obtain an accurate understanding of this phenomenon, we propose a simple yet effective approach, i.e.
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