| 光谱学与光谱分析 |
|
|
|
|
|
| Study on the Optical Properties of Ultra-Thin Metal Films in the THz Band |
| MA Feng-ying, CHI Quan, SU Jian-po*, DU Yan-li, ZHANG Wei-wei, CHEN Ming, LIU Jian-li, GUO Mao-tian, YUAN Bin |
| School of Physical Science and Engineering, Zhengzhou University, Zhengzhou 450001, China |
|
|
|
|
Abstract Thin metal films are good candidates of terahertz detectors, reflectors, waveguides and terahertz quantum-cascade lasers (THz-QCLs). The optical parameter is the basis not only for designing the THz components but also for developing novel optoelectronic materials. In the present paper, the complex refractive indices of the ultra-thin metal (Cr, Ni and Ti) films in the THz band were obtained by the THz differential time-domain spectroscopy. The reflection spectra of the GaAs/metals interface were calculated according to the Fresnel formula. The mean reflectance of 25 nm Cr, Ni and Ti are over 80% from 0.3 to 1.5 THz. The results show that ultra-thin metal films can be used for reflectors as well as the electrodes in the THz band.
|
|
Received: 2011-06-29
Accepted: 2011-09-22
|
|
|
|
Corresponding Authors:
SU Jian-po
E-mail: sujp@zzu.edu.cn
|
|
[1] Bolakis C, Grbovic D, Lavrik N V, et al. Opt. Express, 2010, 18(14): 14488.
[2] Naftaly M, Dudley R. Appl. Opt., 2011, 50(19): 3201.
[3] Gagan Kumar, Shashank Pandey, Albert Cui, et al. New J. Phys., 2011, 13(3): 033024.
[4] Thoman A, Kern A, Helm H, et al. Phys. Rev. B, 2008, 77(19): 195405.
[5] JIN Bin, LI Tong, ZHOU Qing-li, et al. (金 彬，李 彤，周庆莉，等). Chinese Journal of Lasers(中国激光)，2009，36(s1): 337.
[6] Ioachim Pupeza, Rafal Wilk, Martin Koch. Opt. Express, 2007, 15(7): 4335.
[7] Lee K S, Lu T M, Zhang X C. Microelectron. J., 2003, 34(1): 63.
[8] Zhou L, Xu W W, Jin B B, et al. Science China-Technological Sciences, 2010, 53(4): 1012.
[9] Corson J, Orenstein J, Seongshik Oh, et al. Phys. Rev. Lett., 2000, 85(12): 2569.
[10] Hiroaki Yasuda, Iwao Hosako. Jpn. J. Appl. Phys., 2008, 47(3): 1632.
[11] Zhou D X, Parrott E P J, Douglas J P, et al. J. Appl. Phys., 2008, 104(5): 053110.
[12] Ordal M A, Bell R J, Alexander R W, et al. Appl. Opt., 1987, 26(4): 744.
[13] Mickan S P, Lee K S, Lu T M, et al. Proceeding of SPIE, 2001, 4591: 197.
[14] Jiang Z P, Li M, Zhang X C. Appl. Phys. Lett., 2000, 76(22): 3221. |
| [1] |
YU Yang1, ZHANG Zhao-hui1, 2*, ZHAO Xiao-yan1, ZHANG Tian-yao1. Study on Extraction Method of Terahertz Spectral Parameters of Rough Surface Samples[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(02): 386-391. |
| [2] |
LI Chen-xi1,2, JIANG Jing-ying2, LIU Rong1,2, CHEN Wen-liang1, 2*, XU Ke-xin1,2. Research on the Influence of Pressure-Induced Skin Deformation on the Diffuse Reflectance Spectra Measurement[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(10): 3006-3010. |
| [3] |
HU Wen-yan1,3, WANG Yu-heng1,3, ZHANG Xiao-shuan2, LI Jun-hui1,3, WANG Zhong-yi1,3, ZHAO Long-lian1,3*. Determination and 3D Reconstruction of Optical Parameters of Biological Tissue Based on Frequency-Domain Near-Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(05): 1374-1379. |
| [4] |
LIU Yong1,2, ZHANG Yuan-zhi1, HOU Hua-yi1, ZHU Ling1,2, WANG An1, WANG Yi-kun1,2*. Tissue Intrinsic Fluorescence Spectrum Recovering Based on Diffusion Theory[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(12): 3836-3841. |
| [5] |
LIU En-chao, LI Xin, WEI Wei, ZHAI Wen-chao, ZHANG Yan-na, ZHENG Xiao-bing . Automatic Field Calibration and Analysis of Satellite Based on Hyper-Spectral Ratio Radiometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(12): 4076-4081. |
| [6] |
HAN Xiao-hui, ZHANG Jin*, YANG Ye, MA Yu-ting, CHANG Tian-ying, CUI Hong-liang . Review on the Methodology for Optical Parameter Extraction with Terahertz Time-Domain Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(11): 3449-3454. |
| [7] |
LI Chen-xi1, 2, SUN Zhe2, HAN Lei2, ZHAO Hui-juan1, 2*, XU Ke-xin1, 2. Study on the Determination System of Tissue Optical Properties Based on Diffuse Reflectance Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(05): 1532-1536. |
| [8] |
HAN Lei1, LI Chen-xi1, 2*, SUN Cheng-tao1, JIANG Jing-ying1, ZHAO Hui-juan1,2, XU Ke-xin1,2 . The Research on Measurement System and Method of Tissue Optical Parameters with Wide Spectra Based on Double-Integrating-Spheres[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(02): 561-566. |
| [9] |
LIU Cheng-bo, SONG Jing-bo, LONG Tao, ZHANG Zhen-xi*. Steady-State Spectroscopy on Complementary Tissue Structural and Functional Information Extraction[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(10): 2714-2717. |
| [10] |
LIU Chang, WANG Xin-ke, SUN Wen-feng, ZHANG Yan* . Accurate Optical Parameters Extracting of Non-Polar Organic Solvents in the Terahertz Range [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 2886-2890. |
| [11] |
LIU Li,HUANG Lan,YAN Yan-lu,WANG Zhong-yi*. Progress in the Study of Impact of Scattering on Stability of Quantitative Analysis Model Using Near Infrared Spectroscopy Technology and Correction Methods[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(10): 2290-2295. |
| [12] |
ZHAO Jun1, DING Hai-shu1*，HOU Xin-lin2, ZHOU Cong-le2 . Non-Invasive Determination of the Optical Properties of Neonatal Brain [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(11): 1768-1771. |
|
|
|
|
