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首页> 外文期刊>Applied optics >Real-time control by multiwavelength ellipsometry of plasma-deposited multilayers on glass by use of an incoherent-reflection model
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Real-time control by multiwavelength ellipsometry of plasma-deposited multilayers on glass by use of an incoherent-reflection model

机译:使用非相干反射模型通过多波长椭圆偏振法实时控制玻璃上等离子体沉积的多层

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摘要

Real-time control by multiwavelength phase-modulated ellipsometry (PME) of the growth of multilayer structures deposited on transparent glass is presented. The structures consist of plasma-deposited SiO2 and SiNx stacks. A model that takes into account incoherent reflection in the substrate is described and tested. A generalized feedback control method that incorporates the incoherent modeling of the transparent substrate is further applied to the growth of a Fabry-Perot and a standard quarter-wave filter, The resulting optical coatings characterized by spectroscopic PME and transmission measurements show a reproducible precision, with less than 1% error between target and measured spectral responses. (C) 1997 Optical Society of America.
机译:提出了通过多波长相位调制椭圆偏振法(PME)实时控制沉积在透明玻璃上的多层结构的生长。该结构由等离子体沉积的SiO2和SiNx叠层组成。描述并测试了考虑基材中非相干反射的模型。结合了透明基材非相干模型的通用反馈控制方法,进一步应用于法布里-珀罗(Fabry-Perot)和标准四分之一波长滤光片的生长。以光谱PME和透射测量为特征的所得光学涂层具有可再现的精度,具有目标和测量光谱响应之间的误差小于1%。 (C)1997年美国眼镜学会。

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