禁带,forbidden band
1)forbidden band禁带
1.Characteristic analysis offorbidden band of planer photonic crystal;平板光子晶体的禁带特性分析
2.Investigation intoforbidden band characteristic of 1-D laser holographic photonic crystal with eigen matrix;用特征矩阵法研究一维激光全息光子晶体的禁带特性
3.The sound wave in the phononic crystal can appear a series offorbidden bands.得出:声波在一维声子晶体中传播时会出现一系列禁带,各级禁带的频率中心是等间隔的,各级禁带的频率宽度是相等的。
英文短句/例句
1.The average, Dit near conduct band is not larger than three times of D(?)禁带上端的平均界面态密度不大于禁带中央附近的三倍;
2.First, no food is allowed in the library.第一条，严禁带食物进图书馆。
3.News in Brief--4th International Conference on the Physics of Narrow Gap Semiconductors第四次国际窄禁带半导体物理会议
4.Widening of PBG in 1D Photonic Crystal and Design of Filter;一维光子晶体禁带扩宽及滤波器设计
5.Design of a GaN HEMT Class F Power Amplifier宽禁带GaN HEMT F类功率放大器设计
6.Studies of Impurities in a Wide Band Semiconductor SiC宽禁带SiC材料中杂质的分析研究
7.Research of band gap of two-dimensional photonic crystal with square rods二维正方柱结构光子晶体禁带的研究
8.Study on the Band Gap Structure for Time-varying Unmagnetized Plasma Photonic Crystals时变非磁化等离子光子晶体禁带特性
9.Effect of Medium Absorption on the One-dimensional Photonic Crystal Forbidden Band介质吸收对一维声子晶体禁带的影响
10.1. For a certain apodization function, the band width, steepness of the band1. 对于同一切趾函数，光栅反射谱的禁带宽度、禁带边缘陡峭性和旁瓣
11.The teacher vetoed the use of a crib.那位老师严禁使用夹带。
12.The electrons are locked in the filled band.电子被囚禁在满带中。
13.Have you got any prohibited goods with you?你随身带有违禁品吗?
14.It is also forbidden to serve bamboo shoots, kelp and lentil noodles.笋子、海带、南粉都禁止吃。
15.Hagrid"s hut is located at the edge of the forbidden forest.海格的小屋位于禁林的边缘地带。
16.Alcoholic drinks are not allowed into certain countries .有些国家禁止带入含酒精的饮料。
17.Tape recorder is not allowed in the concert .音乐厅内禁止携带录音机。
18.The ban on liquids and gels in your carry-on bag is no longer.不再禁止包携带易燃液体和胶体。
相关短句/例句
Band gap禁带
1.Study on the band gap of photonic crystals using phase diagram;相位图法研究光子晶体的禁带
2.The main properties of the band gap and dispersion structure of the one-dimensional photonic crystal,whose each period consisting of one layer of a usual material and one layer of negative refractive material,are studied based on Maxwell equation and Bloch theory.为了得到新的传输性质,把具有负介电常数和磁导率的负折射率材料引入到光子晶体当中,运用M axwell电磁波方程和B loch理论得到的含正负折射率材料的色散关系的解析式,分别分析一维无限周期且正折射率材料和负折射率材料交替组成的一维光子晶体的禁带结构和色散特性,并与常规的正折射率材料的光子晶体比较,发现含正、负折射率材料且呈周期性重复的双层结构的复合光子晶体其光子具有较宽禁带,为设计超宽禁带的光子带隙结构提供了一定的理论可能性。
3.It is obviously shown from the calculated results that band gap width positions and defect mode transmission coefficient positions are related to position,type,dielectric constant of defect,especially rel.在一维线缺陷的研究基础上进一步应用转移矩阵方法数值研究带其它缺陷的二维正方晶格圆柱光子晶体的透射谱,缺陷的引入使得原来不透电磁波的禁带中,出现了缺陷模,即某一波长的电磁波可以透过,计算结果表明禁带位置、宽度,缺陷模的位置与透过率随着缺陷的种类、介质、程度有关,特别是都受到波源的入射角调制。
3)bandgap["b?ndɡ?p]禁带
1.The variation of reflectivity of TE-wave and TM-wave along with the incidence angles in first photonicbandgap was calculated when two kinds of medium with differ refractive index matter were adopted.用特征矩阵方法得出了一维光子晶体的反射率计算公式,以/4波片堆为例,计算了当两种介质采用不同折射率的物质时,在第一光子禁带TE波及TM波的反射率随入射角的变化。
2.new technology of optical filter which is photonic crystal filter is advanced, putting emphasis on one-dimensional photonic crystal filter, the principles and development of the filter, especially the relationship of some important parameters, such as photonicbandgap, characteristics of the defect state, refractive index of the dielectric and the number of the periods.着重介绍一维光子晶体滤波器的滤波原理和发展前景,尤其是其光子禁带和缺陷态特性与介质的折射率、周期数等重要参数的关系,如何使光子晶体滤波器具有更优良的性能和多种滤波形式。
3.This thesiscompute the e?ect on resonance frequency, position ofbandgap and transmissionspectrum of 2D and 3D locally resonant phononic crystal by changing the shapeof resonant unit.三组元局域共振型声子晶体的晶格尺寸可以比布拉格散射产生的禁带波长小1～2个数量级,从而获得了利用小尺寸有效控制大波长的能力,可广泛应用于新型声波波导,滤波器以及声开关等器件的设计与制造。
4)photonic band gap禁带
1.Based on transfer matrix, thephotonic band gap (PBG) is deduced in detail in one- dimensional photonic crystals.本文从传输矩阵出发,详细推导了一维光子晶体的禁带结构,得出了光子晶体的禁带位置、带宽、形状和组成光子晶体材料光学厚度、折射率对比、光子晶体结构的关系。
5)The direct-band-gap energy禁带带宽
6)Photonic bandgap光子禁带
1.The influences of the structure parameters of a two-dimensional square photonic crystal on its photonic bandgap properties are investigated with the multiple-scattering method.用多重散射法研究了二维光子晶体的结构参量对光子禁带特性的影响。
2.The effect of dielectric constant contrast and filling factor on photonic bandgap (PBG) for perfect PCs and localized states in PCs with point defects are investigated.针对介电常数对比和填充率对完整光子晶体中光子禁带以及缺陷态的影响作了研究 。
3.The photonic crystal fiber(PCF) with a special envelop structure induces the light by photonic bandgap(PBG) effect.光子晶体光纤(PCF)是一种具有特殊包层结构的光纤,它是利用光子禁带效应(PBG)来导光的。
延伸阅读
禁带见固体的能带。
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