搜索结果: 1-15 共查到“光学工程 photonic crystals”相关记录41条 . 查询时间(0.151 秒)
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 ...
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...
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...
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...
Slow Light with Photonic Crystals for On-Chip Optical Interconnects
Slow Light Photonic Crystals On-Chip Optical Interconnects
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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
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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
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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
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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
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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...
Advances in Theory of Photonic Crystals
Dynamic photonic crystals, magneto-optical effects photonic crystals stopped light time-reversal of light
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2015/8/11
In this paper, the authors review some of the recent advances in the theory of photonic crystals, drawing examples from their own work in magnetooptical and dynamic photonic crystals. The combination ...
One-way total reflection with one-dimensional magneto-optical photonic crystals
One-way total one-dimensional magneto-optical photonic crystals
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2015/8/11
The authors show that one-dimensional magneto-optical photonic crystals can achieve one-way total reflection. The unit cell of the crystal, which consists of two bismuth iron garnet layers with ...
Enhancing or suppressing self-focusing in nonlinear photonic crystals
suppressing self-focusing nonlinear photonic crystals
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2015/8/11
The authors show that the effect of self-focusing can be controlled by exploiting spatial dispersion effects in a photonic crystal. In the positive refraction region, the critical field value fo...