提出了用介质圆柱光子晶体作微波天线的柱抛物面反射镜,用多重散射方法计算了反射镜的透过谱,并模拟计算了天线的电场分布,初步认为可以用非晶光子材料作微波天线的反射镜。
We calculated the transmission of the mirror and the distribution of electric field by using multiple scattering method. The result shows that it can be used as a reflecting mirror of an antenna.
提出了辐射光谱、测量区域内大气透过率谱的算法模型,以及应用非线性最小二乘拟合算法实现气体浓度反演的方法。
The algorithm of radiance spectra and transmittance spectra in measured region was proposed, and the method of retrieving gas concentrations with NLLS fitting algorithm was also proposed.
通过分析目标谱分布,并运用MODTRAN模拟计算背景程辐射和整层大气透过率,得到对应不同目标的权函数。
The weight functions were obtained by analyzing target spectra distribution and background radiance, transmittance computed by MODTRAN.
扫描仪可以取代人眼,渠道光透过光纤电缆,一谱内容分析仪分光光度计,如图2所示。
A scanner replaces the human eye, and channels light through a fiber-optic cable to a spectral contents analyzer spectrophotometer, as shown in Figure 2.
为产生中红外波段的超连续谱,须使用在该波段具有高透过率的非石英材料来拉制光纤或微结构光纤。
Non-silica glass materials are good candidates for fabricating microstructured fibers used for mid-IR supercontinuum generation because of their high transmittance in the region.
为产生中红外波段的超连续谱,须使用在该波段具有高透过率的非石英材料来拉制光纤或微结构光纤。
Non-silica glass materials are good candidates for fabricating microstructured fibers used for mid-IR supercontinuum generation because of their high transmittance in the region.
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