Title :
Terahertz metasurface for potential live cell sensing application
Author :
Qi Tang ; Min Liang ; Hao Xin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
This paper presents a terahertz (THz) metasurface structure which may be promising for sensing and characterizing live cells. The metasurface consists of periodic hole arrays with a pair of narrow tips as electrodes. Simulation results show a bandpass resonant transmission at 0.49 THz for free-standing case. The influence of substrate and the device sensitivity are investigated. Fields are largely concentrated near the metallic probe tips, therefore increases the coupling of incident THz radiation with examined biological samples. The design is aimed to develop a lab-on-a-chip device to sense and characterize live cells.
Keywords :
biomedical electrodes; biomedical measurement; cellular biophysics; surface structure; terahertz waves; THz metasurface structure; bandpass resonant transmission; biological samples; device sensitivity; electrodes; frequency 0.49 THz; incident THz radiation coupling; lab-on-a-chip device; live cell sensing application; metallic probe tips; periodic hole arrays; terahertz metasurface; Dielectrics; Electrodes; Metals; Microfluidics; Sensitivity; Sensors; Substrates;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711798
