Title :
Free-space propagation of radially and azimuthally polarized terahertz Bessel-Gauss beams
Author :
Winnerl, S. ; Zimmermann, B. ; Hubrich, R. ; Peter, F. ; Schneider, H. ; Helm, M.
Author_Institution :
Inst. of Ion Beam Phys. & Mater. Res., Forschungszentrum Dresden Rossendorf, Dresden, Germany
Abstract :
This study presents microstructured emitters for radially and azimuthally polarized beams to study for the first time the divergence of the beams behind the emitter and record transverse and longitudinal components of the beams in the focus. Free-space propagation of radially and azimuthally polarized Bessel-Gauss THz beams is studied. The results are interesting for basic research and for applications in THz imaging and waveguiding.
Keywords :
Bessel functions; Gaussian distribution; laser beams; light propagation; submillimetre wave spectra; azimuthally polarized beams; beam divergence; free-space propagation; microstructured emitters; radially polarized beams; terahertz Bessel-Gauss beams; Electrodes; Nonlinear optics; Optical polarization; Optical propagation; Optical pulse generation; Optimized production technology; Photoconductivity; Shape; Submillimeter wave propagation; Zinc compounds;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191998
