Measurement of the Optical Constants of Thin Metal Films by THz Differential Time Domain Spectroscopy

被引:8
作者
Ma Feng-Ying [1 ]
Su Jian-Po [1 ]
Gong Qiao-Xia [1 ]
Yang Jing [1 ]
Du Yan-Li [1 ]
Guo Mao-Tian [1 ]
Yuan Bin [1 ]
机构
[1] Zhengzhou Univ, Sch Phys Sci & Engn, Zhengzhou 450001, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1088/0256-307X/28/9/097803
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Three kinds of nanometer-scale metal films (Cr, Ni and Ti) with different thicknesses are fabricated. The complex refractive indices of the three metal films are quantitatively measured by using THz differential time-domain spectroscopy (THz-DTDS). The orders of the complex refractive indices of the thin metal films are equal to those of the reported values. Our results validated that THz-DTDS can be used to study the features of the ultra-thin metal films.
引用
收藏
页数:4
相关论文
共 17 条
[1]   Review of terahertz and subterahertz wireless communications [J].
Federici, John ;
Moeller, Lothar .
JOURNAL OF APPLIED PHYSICS, 2010, 107 (11)
[2]   Passive terahertz camera for standoff security screening [J].
Grossman, Erich ;
Dietlein, Charles ;
Ala-Laurinaho, Juha ;
Leivo, Mikko ;
Gronberg, Leif ;
Gronholm, Markus ;
Lappalainen, Petteri ;
Rautiainen, Anssi ;
Tamminen, Aleksi ;
Luukanen, Arttu .
APPLIED OPTICS, 2010, 49 (19) :E106-E120
[3]   Terahertz spectroscopic investigations of explosives [J].
Hu, Ying ;
Huang, Ping ;
Guo, Lantao ;
Wang, Xiaohong ;
Zhang, Cunlin .
PHYSICS LETTERS A, 2006, 359 (06) :728-732
[4]   Dielectric constant measurement of thin films by differential time-domain spectroscopy [J].
Jiang, ZP ;
Li, M ;
Zhang, XC .
APPLIED PHYSICS LETTERS, 2000, 76 (22) :3221-3223
[5]  
Kröll J, 2007, OPT EXPRESS, V15, P6552, DOI 10.1364/oe.15.006552
[6]   Sensing minute changes in biological cell monolayers with THz differential time-domain spectroscopy [J].
Liu, Hai-Bo ;
Plopper, George ;
Earley, Sarah ;
Chen, Yunqing ;
Ferguson, Bradley ;
Zhang, X-C. .
BIOSENSORS & BIOELECTRONICS, 2007, 22 (06) :1075-1080
[7]   Phase shift and penetration depth of metal mirrors in a microcavity structure [J].
Ma, Fengying ;
Liu, Xingyuan .
APPLIED OPTICS, 2007, 46 (25) :6247-6250
[8]  
Menikh A, 2002, CHEMPHYSCHEM, V3, P655, DOI 10.1002/1439-7641(20020816)3:8<655::AID-CPHC655>3.0.CO
[9]  
2-W
[10]  
Oulachgar H, 2010, 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ 2010)