DocumentCode
644549
Title
Longitudinal fields in focused terahertz beams
Author
Winnerl, S. ; Hubrich, Ralf ; Mittendorff, M. ; Schneider, H. ; Helm, M.
Author_Institution
Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
fYear
2013
fDate
1-6 Sept. 2013
Firstpage
1
Lastpage
2
Abstract
We measure transverse as well as longitudinal terahertz field components in the focus of both radially and linearly polarized beams. A phase shift of π/2 between the transverse and longitudinal field contributions is found in both cases for all frequency components. Furthermore tighter focusing of the longitudinal components of the radially polarized beam as compared to the transverse components of the linearly polarized beam is demonstrated.
Keywords
light polarisation; optical focusing; focused terahertz beams; linearly polarized beams; longitudinal terahertz field; optical focusing; radially polarized beams; transverse terahertz field; Abstracts; Apertures; Diffraction; Earth Observing System; Focusing; Lenses; Optimized production technology;
fLanguage
English
Publisher
ieee
Conference_Titel
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location
Mainz
Type
conf
DOI
10.1109/IRMMW-THz.2013.6665517
Filename
6665517
Link To Document