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Light trapping in photonic crystals
Light trapping photonic crystals
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2015/8/6
We consider light trapping in photonic crystals in the weak material absorption limit. Using a rigorous electromagnetic approach, we show that the upper bound on the angle-integrated absorption enhanc...
Three-dimensional self-assembled photonic crystals with high temperature stability for thermal emission modification
Three-dimensional self-assembled photonic crystals temperature stability thermal emission modifi cation
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2015/8/7
Selective thermal emission in a useful range of energies from a material operating at high temperatures is required for effective solar thermophotovoltaic energy conversion.Three-dimensional metallic ...
Studies of Optical Properties of Symmetrical Quasi-Periodic Photonic Crystals
Symmetrical Quasi-Periodic Photonic Crystals Hybrid Photonic Crystals Photonic Band Gap
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2013/1/30
Using the transfer matrix method approach (TMM), the present paper attempts to determine the optical properties of quasi-periodic symmetric one-dimensional photonic systems. In addition, it studies hy...
Comparative Study of the One Dimensional Dielectric and Metallic Photonic Crystals
Transmission Metallic Photonic Crystals Dielectric Photonic Crystals Photonic Band Gap
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2013/1/30
The optical transmission properties of two types of photonic crystals have been analyzed by using the transfer matrix method. The first one is the dielectric photonic crystal (DPC), and the second is ...
Two-component solitons under a spatially modulated linear coupling: Inverted photonic crystals and fused couplers
Two-component solitons spatially modulated linear Inverted photonic crystals fused couplers Optics
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2012/5/29
We study two-component solitons and their symmetry-breaking bifurcations (SBBs) in linearly coupled photonic systems with a spatially inhomogeneous strength of the coupling. One system models an inver...
Transmission Character of General Function Photonic Crystals
General Photonic crystals Dispersion relation Transmissivity
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2012/5/29
In the paper, we present a new general function photonic crystals (GFPCs), which refractive index of medium is a arbitrary function of space position. Unlike conventional photonic crystals (PCs), whic...
Efficient computation of equifrequency surfaces and density of states in photonic crystals using Dirichlet-to-Neumann maps
Efficient computation equifrequency surfaces photonic crystals Dirichlet-to-Neumann maps
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2015/8/10
We present an efficient method for computing the equifrequency surfaces (EFSs) and density of states of a photonic crystal. The method is based on repeatedly solving a small nonlinear eigenvalue probl...
Complex k band diagrams of 3D metamaterial/photonic crystals
Complex k band diagrams 3D metamaterial photonic crystals
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2011/9/9
A finite element method (FEM) for solving the complex valued k(w) vs. w dispersion curve of a 3D metamaterial/photonic crystal system is presented. This 3D method is a generalization of a previously r...
Fluid-induced pattern-formation in 3D photonic crystals with spatially varying surface functionalization
3D photonic spatially varying surface functionalization
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2010/12/28
We introduce a 3D porous photonic crystal whose inner surfaces are chemically functionalized in arbitrary spatial patterns with micro-scale resolution. We use this platform to demonstrate pattern-form...
Spatial entanglement in optical parametric oscillators with photonic crystals
entanglement optical parametric oscillators photonic crystals
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2010/11/8
The effects of an intracavity photonic crystal in a multimode optical parametric oscillator are studied, with a special focus on quantum fluctuations. The capability to either stimulate or inhibit the...
Photonic Crystals with Controlled Disorder
Photonic Crystals Controlled Disorder
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2010/11/16
Photonic crystals are extremely sensitive to structural disorder even to the point of completely losing their functionalities. While on one side this can be detrimental for applications in traditiona...
Function Photonic Crystals
Function Photonic Crystals Physics
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2010/11/12
In the paper, we present a new kind of function photonic crystals, which refractive index is a function of space position. Unlike conventional PCs, which structure grow from two materials, A and B, w...
Further enhancement of light extraction efficiency of light-emitting diode with Ag film grown on photonic crystals
photonic crystal photonic bandgap light-emitting diode surface plasmon transmission
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2011/5/5
Photonic bandgap of photonic crystals (PCs) and the effect of grating diffraction can be used to
improve the extraction efficiency of the light from a light-emitting diode (LED). The transmission
of...
Engineering a light-emitting planar defect within three-dimensional photonic crystals
photonic crystals photoluminescence planar defect
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2010/1/19
Sandwich structures, constructed from a planar defect of rhodamine-B (RhB)-doped titania (TiO2) and two photonic crystals, were synthesized via the self-assembly method combined with spin-coating. The...
Tuning of the Optical Properties in Photonic Crystals Made of Macroporous Silicon
Optical Properties Photonic Crystals Macroporous Silicon
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2009/5/19
It is well known that robust and reliable photonic crystal structures can be manufactured with very high precision by electrochemical etching of silicon wafers, which results in two- and three-dimensi...