中国粉体技术2013，Vol.19Issue(3)：62-65,4.DOI:10.3969/j.issn.1008-5548.2013.03.016
SiC和Si3N4粉体的太赫兹时域光谱研究
Terahertz Time-Domain Spectroscopy of SiC and Si3N4 Powders
韩建龙 1邱桂花 1张瑞蓉 1潘士兵 1黄成亮 1于名讯1
作者信息
- 1. 中国兵器工业集团第五三研究所,山东济南250031
- 折叠
摘要
Abstract
Transmission spectra of SiC and Si3N4 powders in 0.4～2.4 THz were measured using terahertz time-domain spectroscopy.The relationship between the terahertz waves absorption performance and the conductivity of SiC and Si3N4 powders was studied.The terahertz waves scattering characteristics of SiC and Si3N4 powders were analyzed.The results indicate that the terahertz waves absorption performance of SiC powders is higher than that of Si3N4 powders,because SiC is a kind of semiconductor materials in which there are much more free carriers than Si3N4.The terahertz waves scattering of SiC and Si3N4 powders belongs to Rayleigh scattering.But the scattering effect is not obvious because of the big gap between the wavelength ofterahertz waves and the particle sizes of SiC and Si3N4 powders.关键词
太赫兹波/太赫兹时域光谱/吸收/电导率/散射Key words
terahertz wave/ terahertz time-domain spectroscopy/absorption/ conductivity/ scattering分类
数理科学引用本文复制引用
韩建龙,邱桂花,张瑞蓉,潘士兵,黄成亮,于名讯..SiC和Si3N4粉体的太赫兹时域光谱研究[J].中国粉体技术,2013,19(3):62-65,4.
