Title :
Omnidirectional Photonic Band Gap Broadening in One dimensional Photonic Crystals
Author :
Changhong, Li ; Huiping, Tian ; Yuefeng, Ji ; Hai, Liu
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
We designed a gradual period one dimensional photonic crystals structure. The transmission spectra of this structure have been studied. The numerical result shows that the photonic band gap (PBG) width is enlarged and the photonic band gap shifts to longer wavelength in the case of normal incident. Verifying the incident angle, we obtained broadened total omnidirectional PBG of this gradual structure. The omnidirectional PBG width is increased 1.53 times compared with the general even one dimensional photonic crystals structure.
Keywords :
infrared spectra; photonic band gap; photonic crystals; refractive index; omnidirectional photonic band gap broadening; one dimensional photonic crystals; photonic band gap shifts; photonic crystal structure; refractive index layer; transmission spectra; Crystalline materials; Dielectrics; Optical filters; Optical modulation; Optical refraction; Optical variables control; Personal communication networks; Photonic band gap; Photonic crystals; Polarization;
Conference_Titel :
Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
0-7803-9773-8
Electronic_ISBN :
0-7803-9774-6
DOI :
10.1109/METAMAT.2006.334924
