Title :
Particulars of focusing of high-bandwidth Terahertz pulses
Author :
Zhukov, S.N. ; Mihailychev, N.E.
Author_Institution :
Radiophys. Dept., Univ. of Nizhni Novgorod, Nizhny Novgorod, Russia
Abstract :
Particulars of focusing of high-bandwidth pulses in terahertz frequency range by the cylindrical plano-convex lens were analyzed utilizing fourier transform based numerical methods. Both model pulse with gauss spatio-temporal profile and real terahertz field, generated by optical rectification of femtosecond laser pulse in electrooptic crystal were investigated. Shown that variant spectral components are focused in different points on the lens´ axis.
Keywords :
Fourier transform optics; electro-optical effects; lenses; microwave photonics; numerical analysis; optical focusing; optical pulse generation; spatiotemporal phenomena; terahertz wave generation; terahertz wave spectra; Fourier transform based numerical methods; cylindrical plano-convex lens; electrooptic crystal; femtosecond laser pulse; gauss spatio-temporal profile; high-bandwidth terahertz pulse focusing; lens axis; model pulse; optical rectification; spectral components; terahertz field; terahertz frequency range; Crystals; Focusing; Lenses; Nonlinear optics; Optical surface waves; Surface waves; Ultrafast optics;
Conference_Titel :
Mathematical Methods in Electromagnetic Theory (MMET), 2012 International Conference on
Conference_Location :
Kyiv
Print_ISBN :
978-1-4673-4478-4
DOI :
10.1109/MMET.2012.6331245
