Active terahertz two-wire waveguides
Research Area: THz Linear and Nonlinear Phenomena Year: 2014
Type of Publication: Article  
Authors:
  • Manoj K Mridha
  • Anna Mazhorova
  • Matteo Clerici
  • Ibraheem Al-Naib
  • Maxime Daneau
  • Xavier Ropagnol
  • Marco Peccianti
  • Christian Reimer
  • Marcello Ferrera
  • Luca Razzari
  • Fran├žois Vidal
  • Roberto Morandotti
 
Journal: Optics Express Volume: 22
Number: 19 Pages: 22340-22348
Month: September
   
Abstract:
We demonstrate, by generating a THz electric field directly within the guiding structure, an active two-wire waveguide operating in the terahertz (THz) range of wavelengths. We compare the energy throughput of the active configuration with that of a radiatively coupled semi-large photoconductive antenna, in which the radiation is generated outside the waveguide, reporting a 60 times higher energy throughput for the same illumination power and applied voltage. This novel, active waveguide design allows to have efficient coupling of the THz radiation in a dispersion-less waveguide without the need of involved radiative coupling geometries.
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