相关实验视频

Updated: Jul 25, 2025

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

对非常粗的表面进行光谱圆测量

Subiao Bian, Oriol Arteaga

|June 29, 2023

概括

这项研究通过分离分散光来增强对粗表面的光谱圆测量. 这使得以前难以分析的材料能够准确地确定光学常数.

科学领域:

材料科学材料科学材料科学
光学物理学光学物理学
表面科学是一门学科.

背景情况:

光谱圆测量是一种强大的技术,用于描述薄膜和表面的特征.
使用常规光谱圆测量分析极其粗的表面是具有挑战性的,因为光散射.

研究的目的:

为了适应光谱圆测量对于表面的粗度相当于或超过光的波长.
开发一种方法来准确确定粗材料的光学常数.

主要方法:

使用了一种定制的光谱圆仪.
变化了冲击角度,以区分分散散射和光谱反射的光组件.
在光谱角度分析了分散的散射元件.

主要成果:

成功地区分了扩散光和镜状光组件.
证明分散元件的反应模仿了光滑表面的反应.
实现了对极其粗的表面进行精确的光学常量测定.

结论:

在光谱角度测量扩散成分对圆测量分析有好处.
这种方法扩大了光谱圆测量的适用性到更粗的表面.
这些发现扩大了光谱圆测量的范围和实用性.

更多相关视频

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Characterization of Surface Modifications by White Light Interferometry: Applications in Ion Sputtering, Laser Ablation, and Tribology Experiments

Published on: February 27, 2013

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Published on: January 26, 2016

相关概念视频

UV–Vis Spectroscopy: Beer–Lambert Law

UV–Vis Spectroscopy: Beer–Lambert Law

The Beer-Lambert law describes the relationship between absorbance and concentration, which combines the principles established by scientists Johann Heinrich Lambert and August Beer. Lambert's law states that when light passes through a medium, the loss in intensity is directly proportional to the original intensity and the path length of the light. Beer's law proposed that the transmittance of a solution remains constant if the product of concentration and path length is constant. The...