The Unfolding of Bandgap Diagrams of Hexagonal Photonic Crystals Computed With FDTD

Salski, Bartłomiej

doi:10.2528/pierm12081313

Cited by 3 publications

(3 citation statements)

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“…18 As shown in Figure S19a, the CPIOPC samples are simplified into the rectangular lattice cells located on the PMMA substrate, and modeled using Floquet periodicity along the xy direction in the whole model box. 19 The incident waves are propagated directly along the z-axis. In each rectangular lattice cell, the air spheres with diameter of d are embedded in the chiral host media (Figure S19b).…”

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confidence: 99%

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Optically Active Inverse Opal Photonic Crystals

Hou

Ali

Guo³

et al. 2018

J. Am. Chem. Soc.

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Chiral photonic crystals have been a widely investigated topic in chemistry, physics and biology. Till now, the research about chiral photonic crystals has been conducted on the objects of helical structures, while the chiral photonic crystals made of periodic chiral media remain unexplored experimentally. In this work, we have successfully constructed three-dimensional chiral polymer inverse opal photonic crystals (3D CPIOPCs) by a template-based method. Impressively, the 3D CPIOPCs exhibit emerging circular dichroism responses near the photonic band gaps. The experiments and calculations clearly elucidate the contribution of photonic structures and chiral media to this characteristic optical activity.

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confidence: 99%

“…The simulation was performed with COMSOL Multiphysics using finite element method . As shown in Figure S19a, the CPIOPC samples are simplified into the rectangular lattice cells located on the PMMA substrate, and modeled using Floquet periodicity along the xy direction in the whole model box . The incident waves are propagated directly along the z -axis.…”

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confidence: 99%

Optically Active Inverse Opal Photonic Crystals

Hou

Ali

Guo³

et al. 2018

J. Am. Chem. Soc.

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“…The finite-difference time-domain (FDTD) method [12][13][14][15][16][17][18][19][20][21][22][23][24][25], which provides a simple and efficient way of solving Maxwell's equations for a variety of problems, has been widely applied to solve many types of electromagnetic problems. The FDTD method has been used to investigate the transient characteristics of grounding systems since 2001 [26].…”

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confidence: 99%

Optimal Programs to Reduce the Resistance of Grounding Systems

Xiong¹,

Chen²,

Gao³

et al. 2013

PIER

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Abstract-In this paper, some optimal programs have been proposed through the analyses of transient grounding resistance (TGR) to reduce the grounding resistance using the finite-difference time-domain method. First, the TGR of various electrode types, lengths and sectional programs is studied, and it is found that a flat bar is the most financially efficient conductor to be used as grounding electrode. Enlarging grounding electrode length can reduce grounding resistance when it is shorter than the effective length, but the reduction effect declines as the length increases. Additionally, a series of small electrodes would lead to a much lower resistance than a single large one. Second, it is demonstrated that locally improving the soil near the grounding system is an efficient way of reducing the grounding resistance. Improving a limited area soil surrounding the lifting line would reduce the peak resistance significantly, while local enlarging electrodes surrounded soil conductivity can reduce the grounding system steady resistance obviously.

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