Title :
Near-field THz imaging and characterization of an array of sub-wavelength circular apertures
Author :
Knab, J.R. ; Adam, A.J.L. ; Nagel, M. ; Seo, M.A. ; Kim, D.S. ; Planken, P. C M
Author_Institution :
Delft Univ. of Technol., Delft
Abstract :
An array of sub-wavelength circular apertures (d=60 mum), periodically distributed in a square lattice, was studied in the near field using Terahertz Time-Domain Spectroscopy (THz-TDS). Images of the complete electric field distribution (Emacrx,Emacry,Emacrz) were recorded over a subsection of the array, as well as the corresponding spectral information, with a spatial resolution Lt10 mum.
Keywords :
electric field measurement; submillimetre wave spectroscopy; terahertz wave imaging; electric field distribution; near-field THz imaging; square lattice; sub-wavelength circular apertures; terahertz time-domain spectroscopy; Apertures; Diffraction; Electric variables measurement; Extraterrestrial measurements; Frequency; Optical arrays; Optical imaging; Optical surface waves; Space technology; Spatial resolution;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665622
