Fabrication and characterization of optical filters from polymeric aerogels loaded with diamond scattering particles
arxiv(2024)
摘要
We have developed a suite of infrared-blocking filters made by embedding
diamond scattering particles in a polyimide aerogel substrate. We demonstrate
the ability to tune the spectral performance of the filters based on both the
composition of the base aerogel material and the properties of the scattering
particles. We summarize the fabrication, optical modeling, and characterization
of these filters. We investigate two polyimide base aerogel formulations and
the effects of loading them with diamond scattering particles of varying sizes
and relative densities. We describe a model for the filters' behavior using a
combination of Maxwell Garnett and Mie Scattering techniques. We present
optical characterization results for diamond-loaded aerogel filters with cutoff
frequencies (50
that the measured spectral performance is in agreement with our optical models.
We also measure the filters' refractive index in the microwave and report
findings in agreement with Maxwell Garnett model predictions (typically n <
1.08).
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要