Journal ArticleDOI
Coupling length variation and multi-wavelength demultiplexing in photonic crystal waveguides
Ziming Wang,Kang Su,Bo Feng,Tianhua Zhang,Wei-Qing Huang,Weicheng Cai,Wei Xiao,Hongfei Liu,Jianjun Liu +8 more
TLDR
In this article, the effects of material/structure parameters of photonic crystal (PhC) parallel waveguides on the coupling length are investigated, and it is shown that increasing the effective relative permittivity of the PhC leads to a downward shift of the photonic bandgap and a variation of coupling length.Abstract:
In this Letter, the effects of material/structure parameters of photonic crystal (PhC) parallel waveguides on the coupling length are investigated. The results show that, increasing the effective relative permittivity of the PhC leads to a downward shift of the photonic bandgap and a variation of the coupling length. A compact PhC 1.31/1.55 μm wavelength division multiplexer (WDM)/demultiplexer with simple structure is proposed, where the output power ratios are more than 24 dB. This WDM can multiplex/demultiplex other light waves efficiently.read more
Citations
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Journal ArticleDOI
Surface plasmon resonance sensor based on photonic crystal fiber with indium tin oxide film
Qiang Liu,Jiudi Sun,Yudan Sun,Zonghuan Ren,Chao Liu,Jingwei Lv,Famei Wang,Liying Wang,Wei Liu,Tao Sun,Paul K. Chu +10 more
TL;DR: In this article, a photonic crystal fiber (PCF) sensor composed of an indium tin oxide (ITO) coating on the outer surface based on surface plasmon resonance (SPR) is designed and investigated.
Journal ArticleDOI
Logic gates based on edge states in gyromagnetic photonic crystal
TL;DR: In this article, three logic gates based on the one-way edge states in gyromagnetic photonic crystal (GPC) were proposed and analyzed theoretically, and the frequency range of the oneway transmission of waveguide was obtained with Finite Element Method (FEM).
Journal ArticleDOI
One-way rotating state of multi-periodicity frequency bands in circular photonic crystal
Journal ArticleDOI
Surface plasmon resonance sensor based on U-shaped photonic quasi-crystal fiber
Qiang Liu,Yu Jiang,Yudan Sun,Chunjie Hu,Jiudi Sun,Chao Liu,Jingwei Lv,Jin Zhao,Zao Yi,Paul K. Chu +9 more
TL;DR: In this article, an eightfold U-shaped photonic quasi-crystal fiber (PQF) and coated with indium tin oxide (ITO) was designed and analyzed numerically.
Journal ArticleDOI
Multiband super-resolution imaging of graded-index photonic crystal flat lens
TL;DR: In this article, a graded-index photonic crystal flat lens was used to achieve multiband super-resolution imaging of point source using different physical mechanisms in three different bands: far-field condition of spherical wave, negative effective refractive index and negative refraction of anisotropic equi-frequency surfaces.
References
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Book
Photonic Crystals: Molding the Flow of Light
TL;DR: In this paper, the authors developed the theoretical tools of photonics using principles of linear algebra and symmetry, emphasizing analogies with traditional solid-state physics and quantum theory, and investigated the unique phenomena that take place within photonic crystals at defect sites and surfaces, from one to three dimensions.