生物基底材料的超宽频带太赫兹光谱研究

doi:10.3964/j.issn.1000-0593(2017)02-0346-04

CORC > 北京大学 > 工学院

	生物基底材料的超宽频带太赫兹光谱研究; Terahertz Spectroscopic Investigation of Substrate Materials for Biological Application in the Frequency Range of 1 similar to 15 THz
	张亮亮 ; 张锐 ; 黄素霞 ; 张存林
刊名	光谱学与光谱分析
	2017
关键词	超宽频带太赫兹光谱基底材料生物应用 Broadband terahertz spectroscopy Substrate material Biological application CANCER-DIAGNOSIS
DOI	10.3964/j.issn.1000-0593(2017)02-0346-04
英文摘要	作为一种新兴的方式,太赫兹时域光谱和成像已经被广泛应用到研究不同生物组织的光学特性。在空气等离子体处施加偏置电场对太赫兹波脉冲进行外差式相干检测(air-biased-coherent-detection,ABCD)的太赫兹系统具有超宽频带和可以在较远距离进行成像的优点,十分适用于对生物组织进行超宽谱研究,而对生物组织进行光谱测量通常需要基底材料。利用太赫兹ABCD系统对四种典型的基底材料(石英,高密度聚乙烯,聚四氟乙烯和石蜡)的光学参数进行测定,并计算其在1~15 THz频率范围内的吸收系数和折射率。结果表明,高密度聚乙烯和石蜡可以很好的被用作生物组织超宽频带太赫兹光谱测量的基底材料。同时,虽然石英和聚四氟乙烯都是窄带(0.1~3 THz)太赫兹系统中常用的基底材料,但是由于它们在高于5 THz的频率范围内对太赫兹波具有较强的吸收,所以不能用作超宽频带太赫兹光谱测量的基底材料。; As emerging modalities, terahertz time-domain spectroscopy and imaging have been widely applied to investigate the optical properties of different biological tissues. The substrate materials are usually needed for biological spectroscopic measurements. The ultra-broadband and facility in remote sensing of the terahertz air-biased-coherent-detection (ABCD) system mean it is a good potential tool for the spectroscopic study of biological tissues. In this paper, the optical parameters of four typical substrate materials (quartz, high-density polyethylene, teflon and paraffin) are measured using terahertz ABCD spectrometer. The absorption coefficients and refractive indices are presented in the frequency range of 1 similar to 15 THz. It is demonstrated that high-density polyethylene and paraffin are good candidates as sample substrate for broadband terahertz biological spectroscopic measurement. However, quartz and teflon which are common substrate materials in narrowband (0.1 similar to 3 THz) terahertz system can not be utilized in high terahertz frequency range because they have strong absorption above 5 THz.; 香江学者计划资助,全国优秀博士论文项目,国家自然科学基金项目; SCI(E); 中国科学引文数据库(CSCD); 2; 346-349; 37
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475457]
专题	工学院
推荐引用方式 GB/T 7714	张亮亮,张锐,黄素霞,等. 生物基底材料的超宽频带太赫兹光谱研究, Terahertz Spectroscopic Investigation of Substrate Materials for Biological Application in the Frequency Range of 1 similar to 15 THz[J]. 光谱学与光谱分析,2017.
APA	张亮亮,张锐,黄素霞,&张存林.(2017).生物基底材料的超宽频带太赫兹光谱研究.光谱学与光谱分析.
MLA	张亮亮,et al."生物基底材料的超宽频带太赫兹光谱研究".光谱学与光谱分析 (2017).