{"id":304836,"date":"2023-09-04T13:40:55","date_gmt":"2023-09-04T13:40:55","guid":{"rendered":"\/forum\/forums\/topic\/bandstructure-of-planar-photonic-crystal-with-a-hexagonal-lattice-2\/"},"modified":"2023-09-04T13:40:55","modified_gmt":"2023-09-04T13:40:55","slug":"bandstructure-of-planar-photonic-crystal-with-a-hexagonal-lattice-2","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/bandstructure-of-planar-photonic-crystal-with-a-hexagonal-lattice-2\/","title":{"rendered":"Bandstructure of planar photonic crystal with a hexagonal lattice"},"content":{"rendered":"

Hello<\/p>\n

I’m plotting the band structures of a photonic crystal structure having a hexagonal lattice with hole arrays in a silicon slab.<\/p>\n

Here is my question:<\/p>\n

    \n
  1. How do we know about the number of bands (10 bands in the example file given) in the band structure graph? Which band gives effect in bandgap? How to position the time monitor for band structure? it is just a random location?<\/li>\n
  2. Since on x-axis is in Gamma-M-K-Gamma, how to get other data from 0 until 0.5 (kx normalized) like in this example “Bandstructure of photonic crystal waveguide – Line defect”? Is it possible to use the same script? I already tried it and got the error when simulated. <\/span><\/li>\n
  3. For the dipole source, how to position it? Is it just a random location? Why in example only need 6 sources? Any explanation for more detail cause I don’t understand clearly about this.<\/span><\/li>\n
  4. When I remove W1(remove a row of air holes), I obtain 3 bandgap but in a straight line. It’s correct? Why is it not in a curved line? Any guidance? <\/span><\/li>\n
  5. \"\"<\/span><\/li>\n<\/ol>\n","protected":false},"template":"","class_list":["post-304836","topic","type-topic","status-closed","hentry","topic-tag-Photoniccrystal-1","topic-tag-bandgap-1","topic-tag-bandstructure-1","topic-tag-defect-1","topic-tag-lattice-structures","topic-tag-photonics"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t