Title :
Sensitivity and error analysis of a surface plasmonic mode metallic grating sensor
Author :
Amarloo, Hadi ; Rohani, Arash ; Safavi-Naeini, Safieddin
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
The performance of a periodic metallic structure for ultra-high sensitivity of dielectric permittivity measurement at THz is presented. Of primary focus in this work are highly sub-wavelength thin samples at THz range of frequencies. The proposed periodic metallic structure is able to guide strongly confined surface plasmon-like modes, which is highly sensitive to very small change in refractive index of the medium in close proximity of the waveguide.
Keywords :
diffraction gratings; error analysis; microwave photonics; optical sensors; optical waveguides; periodic structures; permittivity measurement; plasmonics; refractive index measurement; sensitivity analysis; surface plasmons; terahertz wave detectors; THz frequencies; dielectric permittivity measurement; error analysis; highly subwavelength thin samples; periodic metallic structure; refractive index; sensitivity analysis; strongly confined surface plasmon-like modes; surface plasmonic mode metallic grating sensor; ultrahigh sensitivity measurement; waveguide; Couplings; Dielectrics; Fabrication; Optical surface waves; Periodic structures; Permittivity; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349347
