Title :
Planar terahertz metamaterials for strain sensing
Author :
Li, Jining ; Shah, Charan M. ; Withayachumnankul, Withawat ; Ung, Benjamin S Y ; Sriram, Sharath ; Bhaskaran, Madhu ; Chang, Shengjiang ; Abbott, Derek
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA, Australia
Abstract :
We present two designs of planar terahertz metamaterials for strain sensing. A series of resonance frequency shifts are obtained with differing gap widths when the sensor is under mechanical compression. The subwavelength metamaterial structures exhibit a high-Q resonance resulting in a good sensitivity to mechanical deformation. Because of the penetrability and relatively high spatial resolution of terahertz waves, the proposed metamaterial-based sensors can be embedded in materials for structural sensing.
Keywords :
deformation; microwave metamaterials; strain sensors; terahertz wave detectors; high-Q resonance; mechanical compression; mechanical deformation; metamaterial-based sensors; planar terahertz metamaterials; resonance frequency shifts; spatial resolution; strain sensors; subwavelength metamaterial structures; terahertz waves; Frequency measurement; Metamaterials; Resonant frequency; Sensors; Strain; Substrates;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380222
