Title :
Remote sensing structures based on surface plasmon resonances and carbon nanotubes
Author :
Thai, Trang ; Haque, Amil ; Ratner, Justin ; Dejean, Gerald ; Tentzeris, Manos M.
Author_Institution :
GEDC, Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A sensor structure based on surface plasmon resonance (SPR) and carbon nanotubes (CNTs) is designed and developed. The device is an ultrasensitive wireless sensor operating in microwave frequencies utilizing the gas sensitivity of CNT mixtures. The sensor consists of a corrugated aluminum plate whose surface is periodically covered with a thin layer of the CNT materials. The incident TM-polarized waves on this surface excite the surface plasmon (SP) mode, thus resulting in a drop of power of the reflected wave. The simulations of the SPR-CNT-based wireless sensor show a frequency shift of 400 MHz in operation range around 22.5 GHz.
Keywords :
Carbon nanotubes; Corrugated surfaces; Gas detectors; Microwave frequencies; Microwave sensors; Plasmons; Remote sensing; Resonance; Surface waves; Wireless sensor networks;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4