Novel topological photonic crystal structure and optical waveguide
A technology of photonic crystals and optical waveguides, applied in the field of optical waveguides, can solve problems such as single means of implementation and small photonic band gap, and achieve high transmission efficiency, large working bandwidth, and robustness
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[0028] In order to make the features, technical solutions and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with specific embodiments and drawings.
[0029] Such as figure 1 As shown in (a), the novel topological photonic crystal structure of the present invention comprises six dielectric pillars arranged in parallel in the air, and the six dielectric pillars are the same dielectric pillars, and the dielectric pillars can be made of silicon material Cylindrical media column. The cross-section of the unit cell is a regular hexagon. On the cross-section of the unit cell, the axes of the three dielectric columns are respectively located on the three vertices of the first equilateral triangle, and the axes of the other three dielectric columns are respectively located on the second On the vertices of the equilateral triangles, the center of the first equilateral triangle and the center of the second equilateral ...
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