diamond-structured photonic crystals with graded air spheres radii

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ID: 213301
2012
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Abstract
A diamond-structured photonic crystal (PC) with graded air spheres radii was fabricated successfully by stereolithography (SL) and gel-casting process. The graded radii in photonic crystal were formed by uniting different radii in photonic crystals with a uniform radius together along the Г‑Х direction. The stop band was observed between 26.1 GHz and 34.3 GHz by reflection and transmission measurements in the direction. The result agreed well with the simulation attained by the Finite Integration Technique (FIT). The stop band width was 8.2 GHz and the resulting gap/midgap ratio was 27.2%, which became respectively 141.4% and 161.9% of the perfect PC. The results indicate that the stop band width of the diamond-structured PC can be expanded by graded air spheres radii along the Г‑Х direction, which is beneficial to develop a multi bandpass filter.
Reference Key
li2012materialsdiamond-structured Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Dichen Li;Haoxue Han;Qingxuan Liang
Journal Nature Materials
Year 2012
DOI
10.3390/ma5050851
URL
http://www.mdpi.com/1996-1944/5/5/851
Keywords
photonic crystals electronics civil engineering (general)microscopydescriptive and experimental mechanics nuclear engineeringengineering (general)

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