Band Diagram of Circular Photonic Crystal Fiber with One-Dimensional Approximation 圆形光子晶体光纤能带结构的一维近似
Study on the band gap of photonic crystals using phase diagram 相位图法研究光子晶体的禁带
The paper begins at electric ruin phenomenon of the electric heating converter, using electric isotropical properties of the nesa sets up one-dimensional grain line model, and gives a equilibrium energy band diagram and band tail states profile of grain line model. 从电热转换元件的电毁现象出发,利用膜材料电性能的各向同性的性质,建立了一维晶粒列模型,给出了晶粒列模型的平衡态能带图和带尾态分布;
Graded strained bulk like structure as semiconductor optical amplifier active region is proposed for the first time. Large band width and polarization insensitivity characteristics for such active structure are analyzed from the point of its gain spectra and energy band diagram. 提出一种新型的半导体光学放大器结构,并从增益谱和能带结构等角度分析其特征,得出其大带宽内偏振不灵敏的原因和规律。
Based on the I-V characteristics, an energy band diagram was proposed. 通过对特性曲线的拟合,提出了基于载流子隧道效应的能带模型。
Based on the properties of high range resolution and wide band spectrum of UWB radar signal, an algorithm of shape recognition for radar signature of the target is presented. The principle block diagram to realize the algorithm by hardware circuits is given. 针对超宽带雷达信号的高空间分辨力和宽频谱特性,提出了一种基于雷达目标形状识别的算法,并结合该算法给出了硬件电路实现的原理框图。
Overall band structure diagram is obtained by DFT-LDA, and then GW approximation is used to correct band energies for some high symmetric k points to get accurate prediction. 总体的能带结构图是利用DFT-LDA得到,而随后采用GW近似方法对一些高对称k点的能级进行了修正,以期得到准确的预测值。