搜索结果: 1-15 共查到“工学 Photonic crystals”相关记录44条 . 查询时间(0.13 秒)
2018 液晶，超材料，转换光学，光子晶体和太阳能电池研讨会（Workshop on Liquid Crystals, Metamaterials, Transformation Optics, Photonic Crystals, and Solar Cells）
2018 液晶 超材料 转换光学 光子晶体 太阳能电池 研讨会
2017/11/29
Since their discovery at the end of the 19th century, liquid crystals have helped illuminate the many ways in which light interacts with matter. The capability of nematic liquid crystal molecules to a...
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
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
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
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 ...
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
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
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...
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
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
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
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...
Slow Light with Photonic Crystals for On-Chip Optical Interconnects
Slow Light Photonic Crystals On-Chip Optical Interconnects
2009/5/19
Transistor scaling alone can no longer be relied upon to yield the exponential speed increases we have come to expect from the microprocessor industry. The principle reason for this is the interconnec...
Absorption enhancement in 1D Ag/SiO2 metallic-dielectric photonic crystals
photonic crystal, metallic-dielectric, absorption enhancement
2011/5/10
The one-dimensional Ag/SiO2 metallic-dielectric photonic crystals (PCs) have been prepared. The absorption enhancement effect over the corresponding metal of 1D Ag/SiO2 metallic-dielectric multi-layer...
Far-Field Focus and Dispersionless Anticrossing Bands in Two-Dimensional Photonic Crystals
Far-Field Focus Dispersionless
2008/10/29
We review the simulation work for the far-field focus and dispersionless anticrossing bands in two-dimensional (2D) photonic crystals. In a two-dimensional photonic-crystal-based concave lens, the far...
Tuning coherent radiative thermal conductance in multilayer photonic crystals
Tuning coherent radiative thermal conductance multilayer photonic crystals
2015/8/10
We consider coherent radiative thermal conductance of a multilayer photonic crystal. The crystal consists of alternating layers of lossless dielectric slabs and vacuum, where heat is conducted only th...
Slow Light with Photonic Crystals for On-Chip Optical Interconnects
Transistor scaling microprocessor industry intrachip communication
2011/4/21
Transistor scaling alone can no longer be relied upon to yield the exponential speed increases we have come to expect from the microprocessor industry. The principle reason for this is the interconnec...