Undistorted guided-wave propagation of subpicosecond terahertz pulses.

نویسندگان

  • R Mendis
  • D Grischkowsky
چکیده

We report efficient quasi-optic coupling of a freely propagating beam of terahertz (THz) pulses into a parallel-plate copper waveguide (with a plate separation of 108mum) and subsequent low-loss, single-TEM-mode propagation with virtually no group-velocity dispersion. Undistorted, low-loss propagation of the incoming 0.3-ps FWHM THz pulses was observed within the bandwidth from 0.1 to 4 THz for a length of 24.4 mm. We compare experimentally derived values for the absorption and phase velocity with theory to show consistency. This demonstration is direct proof of the excellent performance of the parallel-plate waveguide as a wideband THz interconnect.

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عنوان ژورنال:
  • Optics letters

دوره 26 11  شماره 

صفحات  -

تاریخ انتشار 2001