Longitudinal fields in focused terahertz beams

Longitudinal fields in focused terahertz beams

Winnerl, S.; Hubrich, R.; Mittendorff, M.; Schneider, H.; Helm, M.

We measure transverse as well as longitudinal terahertz field components in the focus of both radially and linearly polarized beams. A phase shift of pi/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: terahertz; vector beams; radial polarization

  • Lecture (Conference)
    38th International Conference on Infrared, Millimeter and Terahertz Waves, 01.-06.09.2013, Mainz, Deutschland
  • Contribution to proceedings
    38th International Conference on Infrared, Millimeter and Terahertz Waves, 01.-06.09.2013, Mainz, Deutschland
    DOI: 10.1109/IRMMW-THz.2013.6665517

Permalink: https://www.hzdr.de/publications/Publ-19698