Description: The dispersion relation and the optical transmittance of a two-dimensional photonic crystal composed of the
hexagonal array of cylindrical air holes fabricated in a dielectric slab were analyzed by group theory and the
numerical calculation based on the fi nite-difference time-domain method. The decay rate of the leaky modes
that exist above the light line ~the dispersion relation in air! in the band diagram was also evaluated, from
which the absence of the coupling between certain internal eigenmodes and the external radiation fi eld was
shown. This phenomenon was related to symmetry mismatching by the group-theoretical argument. Platform: |
Size: 185066 |
Author:Qtai |
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Description: The dispersion relation and the optical transmittance of a two-dimensional photonic crystal composed of the
hexagonal array of cylindrical air holes fabricated in a dielectric slab were analyzed by group theory and the
numerical calculation based on the fi nite-difference time-domain method. The decay rate of the leaky modes
that exist above the light line ~the dispersion relation in air! in the band diagram was also evaluated, from
which the absence of the coupling between certain internal eigenmodes and the external radiation fi eld was
shown. This phenomenon was related to symmetry mismatching by the group-theoretical argument. -The dispersion relation and the optical transmittance of a two-dimensional photonic crystal composed of thehexagonal array of cylindrical air holes fabricated in a dielectric slab were analyzed by group theory and thenumerical calculation based on the Platform: |
Size: 184320 |
Author:Qtai |
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Description: 用于绘制光子晶体光纤空气孔形状的可扩展程序。-This is a simple and expandable programm for the air hole shape of Photonic crystal fiber Platform: |
Size: 80896 |
Author:江鹏 |
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Description:
这个程序可以用于四方晶格光子晶体空气孔柱的能带计算。给出了解析的折射率分布
u1=[1,0,0]
u2=[0,1,0]
u3=[0,0,1]
-This code can be used in band structure of photonic crystal. It give out the dielectric distribution of circular air holes. Platform: |
Size: 13312 |
Author:steven |
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Description:
这个程序可以用于三角晶格空气孔光子晶体的能带计算。给出了解析的折射率分布
u1=[1,0,0]
u2=[1/2,sqrt(3)/2,0]
u3=[0,0,1]
-This code can be used in band structure of triangular lattice rod photonic crystal. It give out the dielectric distribution of circular air holes. Platform: |
Size: 13312 |
Author:steven |
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Description: 用平面波展开法计算的二维光子晶体空气孔结构，TM和TE模式的能带图，matlab程序源代码-With the plane wave expansion method to calculate the two-dimensional photonic crystal structure of air holes, TM and TE modes of the energy band diagram, matlab source code Platform: |
Size: 8192 |
Author:lubo |
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Description: photonic crystal fiber (PCF) made of silicon is proposed and numerically
optimized with both ultrahigh birefringence and nonlinearity. By introducing an elliptical lowindex
slot in the core region, one of the orthogonally polarized fundamental modes can be
confined in the low-index region due to the discontinuity of its electric field at the interface of
the slot and the surrounding material, while the other fundamental mode is dominated by the
modified total internal reflection (MTIR) induced by air holes of the cladding, leading to a
birefringence as high as 101 order. On the other hand, benefiting the tight field
confinement and highly nonlinear material, nonlinear coefficients up to 1068 W1 m1 and
162 W1 m1 can be achieved for the slot mode and the MTIR mode, respectively.-photonic crystal fiber (PCF) made of silicon is proposed and numerically
optimized with both ultrahigh birefringence and nonlinearity. By introducing an elliptical lowindex
slot in the core region, one of the orthogonally polarized fundamental modes can be
confined in the low-index region due to the discontinuity of its electric field at the interface of
the slot and the surrounding material, while the other fundamental mode is dominated by the
modified total internal reflection (MTIR) induced by air holes of the cladding, leading to a
birefringence as high as 101 order. On the other hand, benefiting the tight field
confinement and highly nonlinear material, nonlinear coefficients up to 1068 W1 m1 and
162 W1 m1 can be achieved for the slot mode and the MTIR mode, respectively. Platform: |
Size: 11285504 |
Author:jack |
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Description: In contrast with conventional optical fibers, photonic crystal fibers (PCF) present a diversity of new
and improved features, which provide several new applications such as nonlinear fiber optics, fiber
lasers, supercontinuum generation, and fiber sensors. In many applications of all-optical signal
processing, optical fibers with both high birefringence and high nonlinearity are desired, because
many nonlinear effects in optical fiber are polarization-sensitive, and maintaining the state of
polarization (SOP) is essential for good performance. In particular, with enhanced nonlinearity, both
the footprint and power-consumption of optical device can be reduced. By carefully arranging the air
holes of PCF, high birefringence in excess of 103 can be readily achieved Platform: |
Size: 655360 |
Author:jack |
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Search - Photonic crystal air-holes