University of Electronic Science and Technology of China, No. 4, Section 2, North Jianshe Road, Chengdu, China
Nano-Micro Conference, 2017, 1, 01020
Published Online: 10 October 2017 (Abstract)
In recent years, more and more attention has been paid on the research and development of terahertz (THz) technologies all over the world. Biosensing in one of the most important applications of THz waves. Metasurface is an artificial two-dimensional material with flexible structures and good electromagnetic wave control capability, which is very suitable for THz wave control and sensing. In this work, a L-shape metasurface THz biosensor was designed, simulated, optimized, micro-fabricated, and finally tested by the time-domain spectroscopy (TDS) system. The simulation and experimental results agree with each other very well. The conclusions show great advantage of metasurface for the THz biosensing application, especially when it is combined with the microfluidic technology in the near future.
Figure 1. Structure of sensing array
Figure 2. Measured results of some liquid samples
 J. B. Pendry, Metamaterials in the sunshine. Nature Materials. 5, 599-600 (2006). doi:10.1038/nmat1697
 X. Yan; X. F. Zhang; L. J. Liang, The application and research progress of metamaterial biological sensor in Terahertz. Spectroscopy and Spectral Analysis. 34, 2365 (2014).
 L. Q. Cong; S. Y. Tan; R. Yahiaoui; F. P. Yan, Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces. Applied Physics Letters. 106, 26 (2015). doi:10.1063/1.4906109
This article is licensed under a Creative Commons Attribution 4.0 International License. (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
© The Author(s) 2017