Title :
Longitudinal fields in focused radially polarized terahertz beams
Author :
Winnerl, S. ; Hubrich, R. ; Peter, F. ; Schneider, H. ; Helm, M.
Author_Institution :
Forschungszentrum Dresden-Rossendorf, Dresden, Germany
Abstract :
We study the spatial and temporal structure of focused THz beams of radial polarization. Strong longitudinal field components localized at the axis of propagation are observed. The phase of the longitudinal field components is shifted by π/2 with respect to the transverse field components.
Keywords :
electro-optical devices; light polarisation; photoconducting devices; terahertz wave detectors; electro-optic detection; focused THz beams; longitudinal field components; photoconductive emitter; propagation axis; radial polarization; spatial structure; temporal structure; transverse field components; Crystals; Electric fields; Electrooptical waveguides; Optical diffraction; Optical polarization; Optimized production technology;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5613048
