Active terahertz two-wire waveguides

Manoj Kumar Mridha*, Anna Mazhorova, Matteo Clerici, Ibraheem Al-Naib, Maxime Daneau, Xavier Ropagnol, Marco Peccianti, Christian Reimer, Marcello Ferrera, Luca Razzari, Franc¸ois Vidal, Roberto Morandotti

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)22340-22348
Number of pages9
JournalOptics Express
Issue number19
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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