Holographic design of hexagonal photonic crystals of irregular columns with large full band gap

2006 ◽  
Vol 267 (2) ◽  
pp. 305-309 ◽  
Author(s):  
X.X. Shen ◽  
L.Z. Cai ◽  
X.L. Yang ◽  
G.Y. Dong ◽  
X.F. Meng ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Full Band ◽  
Irregular Columns

Band gap analysis and holographic design of 3-fold hybrid triangular photonic crystals of irregular columns with large full band gaps

2007 ◽  
Vol 9 (5) ◽  
pp. 531-536 ◽  
Author(s):  
Guo-Yan Dong ◽  
Xiu-Lun Yang ◽  
Lu-Zhong Cai ◽  
Xiao-Xia Shen ◽  
Xiang-Feng Meng ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Gap Analysis ◽  
Band Gaps ◽  
Full Band ◽  
Irregular Columns

Silica photonic crystals with quasi-full band gap in the visible region prepared in ethanol *

2003 ◽  
Vol 13 (9) ◽  
pp. 717-720 ◽  
Author(s):  
Hui Zhang ◽  
Xidong Wang ◽  
Xiaofeng Zhao ◽  
Wenchao Li ◽  
Qing Tang
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Visible Region ◽  
Full Band

Characteristic band gap structures of high dielectric contrast photonic crystals

2011 ◽  
Vol 1343 ◽  
Author(s):  
Sheng D. Chao ◽  
Hsin Y. Peng
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Hexagonal Lattice ◽  
Dispersion Curves ◽  
Band Gaps ◽  
Circular Cylinders ◽  
Change Characteristics ◽  
Dielectric Contrast ◽  
Full Band ◽  
High Dielectric

ABSTRACTConventional photonic crystals exhibit low-lying full band gaps for the dielectric contrast smaller than 15. As the dielectric contrast increases, the band gap patterns change characteristics and exhibit interesting properties. In particular, the dispersion curves near the band gap region become concentrated to the middle band frequencies and exhibit an overall red shift in frequency. For a dielectric column photonic crystal made of a hexagonal lattice of circular cylinders, the maximum full band gap was found at the dielectric contrast as high as 27.5, which is attainable by using ceramics materials. The gap opens at high-lying bands, has simultaneous TM and TE band edges, and exhibit flattened dispersion curves near the band edges.

Drilled alternating-layer structure for three-dimensional photonic crystals with a full band gap

2000 ◽  
Vol 18 (6) ◽  
pp. 3510 ◽  
Author(s):  
Eiichi Kuramochi ◽  
Masaya Notomi ◽  
Toshiaki Tamamura ◽  
Takayuki Kawashima ◽  
Shojiro Kawakami ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Layer Structure ◽  
Three Dimensional ◽  
Full Band

scholarly journals Connected hexagonal photonic crystals with largest full band gap

2005 ◽  
Vol 13 (20) ◽  
pp. 7854 ◽  
Author(s):  
H. K. Fu ◽  
Y. F. Chen ◽  
R. L. Chern ◽  
Chien C. Chang
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Full Band

Effect of Double Defects on Transmission Spectra of One-Dimensional Photonic Crystals

2010 ◽  
Vol 663-665 ◽  
pp. 725-728 ◽  
Author(s):  
Yuan Ming Huang ◽  
Qing Lan Ma ◽  
Bao Gai Zhai ◽  
Yun Gao Cai
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Theoretical Calculations ◽  
Stop Band ◽  
Band Gaps ◽  
Characteristic Matrix ◽  
Frequency Range ◽  
Defect Band ◽  
One Dimensional ◽  
The One

Considered the model of the one-dimensional photonic crystals (1-D PCs) with double defects, the refractive indexes (n2’, n3’ and n2’’, n3’’) of the double defects were 2.0, 4.0 and 4.0, 2.0 respectively. With parameter n2=1.5, n3=2.5, by theoretical calculations with characteristic matrix method, the results shown that for a certain number (14 was taken) of layers of the 1-D PCs, when the double defects abutted, there was a defect band gap in the stop band gap, while when the double defects separated, there occurred two defect band gaps in the stop band gap; besides, with the separation of the two defects, the transmittance of the double defect band gaps decreased gradually. In addition, in this progress, the frequency range of the stop band gap has a little increase from 0.092 to 0.095.

3-Dimensional Photonic Crystals at Optical Wavelengths

1998 ◽  
Vol 07 (02) ◽  
pp. 181-200 ◽  
Author(s):  
S. G. Romanov
Keyword(s):  
Photonic Crystals ◽  
Band Gap ◽  
Photonic Band Gap ◽  
Stop Band ◽  
High Refractive Index ◽  
3 Dimensional ◽  
Optical Wavelength ◽  
Photonic Band Gap Materials ◽  
Optical Wavelengths ◽  
Photonic Band

Different experimental strategies towards the 3-dimensional photonic crystals operating at optical wavelength are classified. The detailed discussion is devoted to the recent progress in photonic crystals fabricated by template method — the photonic band gap materials on the base of opal. The control of photonic properties of opal-based gratings is achieved through impregnating the opal with high refractive index semiconductors and dielectrics. Experimental study demonstrated the dependence of the stop band behaviour upon the type of impregnation (complete or partial) and showed a way for approaching complete photonic band gap. The photoluminescence from opal- semiconductor gratings revealed suppression of spontaneous emission in the gap region with following enhancement of the emission efficiency at the low-energy edge of the gap.

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