band gap

For a metal this can be a very small energy in the semiconductor the next higher states lie above the band gap.

It is found that this kind of photonic crystal can enlarge the band gap compared with ordinary structure photonic crystal.

Therefore, it is possible to fabricate PCs whose band gap range is from the near-infrared to visible wave band.

However, the refractive index contrast of the fabricated polymeric structure is insufficient to open a complete photonic band gap.

In peacock feathers, color is produced by the reflection of light with frequencies within the partial photonic band gap.

The invention relates to a method to prepare composite band-gap colloidal photonic crystal film through adopting an ink-jet printing method.

In chapter two, The dispersion of a type of slow-wave structure and the photonic crystal band gap structures are discussed in this chapter.

After an analysis of its optical properties, the photonic band gap and the centre wavelength is coincidence with the theoretical value.

as the radius of the cylinder increases, the two edges of the band gap decrease, and the bandwidth reaches a maximum and then it decreases.

Narrow band gap and pseudogap compounds somehow exhibit different behavior from ordinary semiconductors and semimetals respectively.

In this paper, We study the statistical properties of the cavity field for dressed-atom laser in a photonic band-gap material.

the gap between permitted bands (the band gap) is a range of energy levels that the electron is forbidden to occupy.

Electromagnetic radiation resonators including photonic crystals having photonic states in the photonic band gap are further provided.

The calculated results demonstrate that the square crystal can obtain higher quality factor, though its band-gap width is narrower than. . .

Selecting a very narrow band gap semiconductor absorber will result in more photons being absorbed but less voltage being produced.

The Vg-BN shows spontaneous magnetization and reduced band gap upon CO adsorption, which may be used in novel magnetic devices.

The spectral linewidth narrowing is due to the common effect of squeezing and the radiation reservoir of the photonic band gap.

With the oxygen ratio increasing, the reflectivity of the as-deposited films decreased, and optical band gap increased.

The band gap can be adjusted by the quantum confinement effect or surface passivation in the nano scale.

The DFT calculations show that the interstitially doped fluorine impurities induce the formation of localized states in the band gap.

Firstly, we optimize infinitely periodic band-gap materials by maximizing the relative size of the band gaps.

Due to quantum confinement effect, band gap of semiconductor nanocrystals(NCs) is dependent on the particle size.

The photonic crystals may include defects that provide photonic states within the photonic band gap.

The results show that the structure possesses a type of photonic band gap originating from total internal reflection (TIR).

Frequency conversation efficiency is special high, because omni-directional can reflect in band gap region of photonic crystals.

The reduction of Si band gap and the enhancement of light intensity under external tensile strain are observed.

Now, negative refractions have already been demonstrated in left-handed materials and artificial band-gap materials.

The place that exists in PBG structures is similar with the bandgap in semiconductor called photonic band gap.

At a lower band gap, the polymer solar cell can better utilize the solar spectrum, thereby absorbing more sunlight.

Results show that: there is complete band gap in the four structures of two-dimensional photonic crystal.

Design of a CMOS Band- Gap Voltage Reference with Low Drift of Temperature .

When increasing the material refractive index, the middle frequencies of the band gap will reduce.

With the increase of oxygen partial pressure, the band gap exhibited different experimental values.

Compared to the compound dielectric cylinder, the single one has not produced a new band gap.

The major property of photonic crystals is photonic band gap-a frequency region where propagating waves are forbidden.

The resuts demonstrate the value of refractive index and optical band gap of amorphous silicon film depends on substrates' temperature.

A microstrip Yagi antenna that employs a 2-D EBG(Electromagnetic Band-gap) ground plane as the reflector is presented in this paper.

Simulation result was obtained about the photonic crystals of the certain wavelength band gap.

Both structures are one-dimensional photonic crystal with incomplete photonic band gap.

Recently, it is one of hot spot that reducing the TiO2 band gap through doped non-mental, so that TiO2 can be excited under visible light.

The results indicate that photonic band gap appear in frequency regions between two well separated resonance states.

If you change the view angle, the partial photonic band gap will shift to short wavelengths for oblique incidence.

Auto-balanced Heel Band Gap: Balanced gap with wipers, shaping perfect lasting results on the heel.

Defected Ground Structure (DGS) is a new structure proposed in recent years, which is extended from Photonic Band-Gap (PBG) Structure.

when the air holes are overlapped, the reason of the band gap appearance is explained. 2.

If the double-layer Graphene processed into light-weight (nanobelts), band-gap can further increased.

and the search for well-controlled atomic-scale wide-band-gap semiconductor surfaces.

The other is photonic band-gap fiber, which guide-light mechanism is very different with the traditional fiber.

Photonic band gap structure of photonic crystal indicates its primary property, which is the base of its design and application.

In photonic crystal band gap defect mode, a long group time delay is gained when the group velocity is greatly decreased.

So, the study on photonic band gap structure is an important part of basic research on photonic crystals.

Photonic crystal is a new kind of materials with photonic band gap.

To the square air rods, we should choose the high refractive index material to enhance the band gap radio of the complete band gap.

For metallic CNTs, the absence of zero band-gap is also justified computationally for non-armchair systems.

In chapter 4, the stress effect on the near band gap emission of ZnO nanowires is investigated.

Photonic band gap structure of photonic crystals indicates its primary Property , which is the base of design of application.

In this paper, we provide new method of transfer matrixs studying the photonic band gap of one-dimensional (1D) photonic crystals.

There is big TM band gap in square dielectric rods, and big TE band gap in square air rods.

However, the large band gap of NaTaO_3 greatly reduces the utilization of solar energy.

In order to find photonic crystals with large photonic band gap, we need to calculate band structures of photonic crystals.

The high precision band gap reference is a very important part in the advanced analog and mixed-signal ICs.

The optical band gap between nano-TiO 2 energy band and conduction band is3.

The ADC core area is 2. 0mm2 without band-gap and reference circuit.

Band gap forming is easy for TE model than TM model at two cases. No wholly band gap exists at medium cylinder in air.

The two-dimensional metal photonic band gap structure consisting of a skew lattice in a nonorthogonal coordinate system

The formation conditions of the fundamental grating solitons close to the photonic band gap in fiber gratings

Numerical result shows that the width of the lowest band gap increases (decreases) with increasing the filling fraction (lattice constant);

A two-dimensional photonic crystal formed by a triangular lattice of square dielectric rods with a large absolute band gap

Large complete band gap of a two-dimensional photonic crystal consisting of anisotropic elliptic cylinders

Effect of Connecting Form of Repeat Unit in Polyphenylene Derivatives Conjugated Polymers on Band Gap

Spontaneous emission in three-dimensional photonic crystals with an incomplete band gap

Photonic Band Gap of the Distorted Face-Center-Cubic Structure Photonic Crystal Fabricated by Holographic Lithography

Characteristics of electromagnetic band-gap structure with stratified crossed dielectric gratings

Study of two dimensional photonic band gap structure

Finite Difference Time Domain Method for the Study of the Band Gap in the Two-dimensional Rectangular Arrays of the Steel Tubes in Air

Effects of Shapes and Orientations of Rods on the Photonic Band Gap in Two Dimensional Photonic Crystals

Preparation of the Three-dimensional Silicon Photonic Crystal with a Photonic Band Gap Near Infrared

Obtained the relationship between birefringent photonic crystal band gap and incident light polarization;

colloidal amorphous crystal with a quasi - complete photonic band gap

Band Gap Character of Two-dimensional Photonic Crystal with Rectangular Lattice

Analysis on Band Gap of Two-Dimensional Photonic Crystals with Heterostructure

Application of the artificial neural network to the design of electromagnetic band gap structure

The influence of difference between the background refraction and the column (air hole) refraction on band gap is also analyzed;

Photonic band-gap properties and filtering application of one-dimensional multicomponent photonic crystal

Band gap characteristics of compound structure composed of lattices with different periodic constants

Transmission of Surface EM Waves in a Planar Metallic-Dielectric Photonic Band-Gap Structure

FDTD Simulation Band Gap of Two-Dimensional Square Cylinder Photonic Crystal

Study of Relations Between Band Gap of Photonic Crystals and the Ratio of Dielectric Index

a second solar subcell disposed over the first subcell and having a second band gap smaller than the first band gap;

Design of a High-accuracy Current Reference Circuit with Band Gap Configuration

Photonic Crystal with Absolute Band Gap in a Two-Dimensional Quasi-Honeycomb Structure

Research on Broadband and Compact Novel photonic band-gap Microstrip Antenna for Wireless Communications

Study of Method Improving Accuracy of Band-gap Temperature Sensor

Calculation of photonic band gap and first Brillouin zone for two-dimensional monoclinic lattice photonic crystal

Application of electromagnetic band-gap structure to receive antenna of the satellite

A Two-Dimensional Anisotropic Photonic Crystal with a Large Absolute Band Gap

Novel small molecular and polymers with narrow band gap were chosen to extend the absorption active range of sunlight;

Simulation of the photonic band gap-midgap ratio of two-dimensional photonic crystals consisting of noncircular air holes

A One-dimensional Photonic Crystal Structure with a Large Absolute Band Gap

Design and Analysis of A High Performance CMOS Band-gap Voltage Reference

Analysis of dispersion properties in metal electromagnetic band gap waveguide

The Study of Complete Photonic Band Gap in Two-Dimensional Photonic Crystals

A compensated compact microstrip resonant cell with photonic band-gap performance

Periodic Electromagnetic Band-gap Structure in Infrared and Microwave Range

Photonic band gap in one-dimensional photonic crystals with graded single refractive index layer

The Micro-strip Shorted Patch Antenna with Compact Electromagnetic Band-gap Structure

Impact of a cover layer to high impedance ground plane band-gap

Uniplanar compact photonic band-gap on uniaxial anisotropic substrate

Design of a High Accuracy and Low Voltage CMOS Band-gap Reference Circuit

Fabrication of Photonic Band Gap Crystals through Colloid Self-Assembly Methods

Complete photonic band gap in two-dimensional chessboard of non-bravais lattice

Calculation of the Imperfect Structure Parameter of Inverse Opal Photonic Crystals based on Analysis of the Photonic Band Gap

a grading interlayer disposed over the second subcell and having a third band gap greater than the second band gap;

Analysis on Band Gap of Two-dimensional Photonic Crystal

Analysis on band gap of photonic crystals with different modular construction

The Band Gap Calculation of Wide-Gap Ternary Compound Nitride Semiconductors in Group

Analysis of band gap in honeycomb photonic crystal heterostructure

Fabrication and Photonic Band Gap Property of Silica Colloidal Crystals

A New Type of Omnidirectional Reflection: The One-dimensional Photonic Band Gap Structure with Gradual Periods

The study of two-dimensional composite materials with wide band gap

Fantastic Properties and Applications of Photonic Band Gap Fibers

Analysis and Design of the Photonic-Band-Gap Microstrip Antenna

Calculating the photonic band gap structure of two-dimensional photonic crystal using the plane wave expansion method

The Width of Frequency Band Gap in One-dimensional Comb-like Waveguide Photonic Crystals

Ball bond Band gap Barrier layer Base Backward bias Base stretching Base transit time

Progress on energy band structure studies of wide-band-gap semiconductors in NSRL

Study on photonic band gap structure using nonorthogonal FDTD method

Fabrication and photonic band gap property of the two-dimensional square lattice based on silicon

Analysis for Photonic Band Gap Property of One-dimensional Photonic Crystal

Optimum Design of Electromagnetic Band Gap Structure

Photoalignment Tunable Band Gap in Photonic Crystal Infiltrated with Liquid Crystal

Analysis of electromagnetic band gap waveguide

Effect of nitrogen pressure on structure and optical band gap of copper nitride thin films

The growth methods and applications of wide band-gap semiconductor SiC

The Relationship between Photonic Band Gap and D-value of Dielectric Constant

Properties and Enlargement of One-dimensional Photonic Crystal's Band Gap

Photonic band gap of two-dimensional photonic crystal based on silicon in mid-infrared

Design of Band-gap Voltage Reference Source of the Ballast controller

Applications of group theory to calculations of photonic band gap

Wide-Band Gap Semiconductor Technology National Key Lab

The Study on the Relation Between the Band Gap with Flaw of Photonic Crystals and Inserted Dielectric Layer

Growth and Photonic Band Gap Property of ZnO Photonic Crystals

A Novel Broad-Band Electromagnetic Band-Gap Structure

Investigation on the broadening of band gap of wurtzite ZnO by Mg-doping

A New-style Frame Super Performance CMOS Band-Gap Voltage Reference

An Transfer Matrix Method for Obtaining the Photonic Band Gap Structure of One-Dimensional Photonic Crystal

A novel photonic band gap structure for microstrip lines

Study on the photonic band gap of one dimensional photonic crystals

Genetic algorithm searching of one-dimensional photonic crystal with broad band gap based on pixel-filled-in methods

Study on the band gap of photonic crystals using phase diagram

Effect of Stuffing Rate on the Band Gap Structure of the Finite Height Photonic Crystals

Study on complete band-gap of a kind of compound lattices

Effects of basic period Structure of One-dimensional Photonic Crystals on the Photonic Band Gap

Effects of Kerr nonlinearity on the band-gap structure of one-dimensional photonic crystals

Design and Realization of Band-gap Reference in LCD

Negative Group Velocity in the Band Gap Range

Study on Photonic Band Gap Structure of One-Dimensional Photonic Crystal

Low-pass filters of wide stop-band based on photonic band-gap structures

Leakage Loss of Solid Core Photonic Band Gap Fibers

The Development of Wide Band Gap Semiconductor device