reflectivity curve meaning in English
反射曲线
Examples
- On the design of the system , the thickness measure system of mems chip is built based on lbu and pump - probe technology . on the analysis of data , the reflectivity curve is analyzed using the law of reflectivity change induced by ultrasound , and the thickness is calculated using the system designed by the article , to aluminum film the size of about 20nm can be measured , when the film be measured is single layer , the relative error of the system is less than 2 % , when the film be measured is double layer , the relative error of the system is less than 10 %
在基础理论方面研究了激光(特别是超短脉冲激光)超声的激励机理，探讨了激光调制技术以提高系统信噪比，阐述了泵束探针束技术及相关实验设置；在系统设计上，以激光超声为基本原理，以泵束探针束技术为系统设计方案完成了mems基片厚度测量系统的设计；在数据分析方法上，利用声致光反射率变化的一般规律对测得的光反射率曲线进行分析，确定超声回波在薄膜两界面间来回传播的时间，以计算薄膜的厚度。 - The structure and the thickness and optical constants of each layer determine the reflectance of the thin film system . we made simulation of the determination of layer thickness of thin film system from is spectral reflectivity curve . the selected algorithm includes simulated annealing algorithm , genetic algorithm , conjugate gradient algorithm and dfp algorithm
我们对不同结构的膜系进行了理论模拟，并首次引入全局优化算法，如遗传算法、模拟退火法等，和超线性算法，如共轭梯度法、变尺度法等，对膜系的光谱特性曲线进行反演，求解出其结构参数。