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However,width of forbidden band,bandwidth and quality factor Q of impurity mode vary with the increase of incidence angles evidently. 但是,禁带宽度、杂质模的带宽及Q值随着入射角的增加有明显变化。
The characteristics of conduction band and forbidden band of photonic crystals are investigated with a macroscopical chord vibrating system indirectly. 得到了类比于光子晶体的亥姆霍兹方程的弦振动系统的本征值方程,并利用该方程研究了光子晶体的导带和禁带特征。
As a new kind of man-made structure function material, photonic crystals could realize thermal infrared camouflage because of its high-reflection photon forbidden band. 光子晶体作为一种新型人工结构功能材料,基于光子禁带的高反射特性可以实现热红外伪装。
The result showsthat the PBG structure has obvious character of forbidden band at the suitable size, andcan be designed to good performance microwave filter. 研究结果表面，取合适的尺寸时，PBG结构具有明显的禁带特性，可以设计成性能良好的微波滤波器；
The result of UV-vis shows that the absorbed valve values of TiO 2(C-Q),TiO 2(S-Q) and TiO 2 (S-dar) are 350nm,360nm and 380nm respectively,and the widths of forbidden band are 3.5,3.44 and 3.2eV respectively. 紫外可见吸收光谱表明TiO2 (C -Q) ;TiO2 (S -Q)和TiO2 (S -dar) 3种样品吸收阈值分别为 35 0 ;36 0和 380nm .;对应的禁带宽度分别为 3
At room temperature, the forbidden band width and stimulus bonding energy of ZnO single-crystal is 3.37eV, 60meV respectively. Some short-wavelength optoelectronic devices can be developed by applying emitting performances of ZnO single-crystal. 室温下;它的禁带宽度为3.;37eV;激子结合能高达60meV;对应紫外光的发射可以开发短波长光电器件。
In the reflected wave, the reflectivity of forbidden band lowers quickly with the extinction coefficient increment, when the extinction coefficient increases to 0.05, there is already no obvious photonic bandgap. 得出：在反射波中，禁带的反射率随消光系数的增加而迅速降低，当消光系数增加到0.;05时，已经不存在明显的能带。
There are two reasons for ATO film's conducting, one is oxygen vacancy in the crystal lattice and another is Sb5+ impurity which forms donor level in the forbidden band of SnO2 and offers n-type carriers to conduction band. SnO2晶格的氧空位、5价Sb杂质在SnO2禁带形成施主能级并向导带提供n型载流子是ATO导电的两种主要机理。
Using the characteristic of refractive index are smaller than 1 in the reststrahlen band,we can produce photonic crystal having forbidden band in the middle infrared and far infrared. 由此可知利用材料在剩余射线带内折射率小于1的特性，我们可以制备出中红外区和远红外区存在禁带的光子晶体。
Silicon and germanium, for instance, have forbidden bands whose widths are 1. 1 and 0. 65eV, respectively. 例如;硅和锗的禁带宽度分别为1.;1电子伏和0
PHOTONIC FORBIDDEN BAND IN VOLUME HOLOGRAMS 体积全息图中的光子禁带
It was discovered that the photonic forbidden bands originates from both the periodicity of the system and the resonance the resonance states of the grafted branches. 发现这种结构的带隙来源于结构的周期性及所接分支所形成的共振态。
He left when the band began to beat out pop music. 乐队一奏起流行音乐他就走了。
The band played a military march. 乐队吹奏军队进行曲。
He was forbidden to walk into the tabernacle. 他被禁止走进礼拜堂。
Smoking is forbidden until the plane is airborne. 飞机升空时禁止吸烟。
A live band is always a good draw at a party. 现场演奏的乐队在聚会上总是很吸引人的。
The passage of motor vehicles is forbidden. 机动车禁止通行。
He was waylaid by a band of guerrillas. 他遭到游击队的狙击。
Radio2 can be heard on the long wave band. 第二广播电台可在长波段收听到。