Undistorted guided-wave propagation of subpicosecond terahertz pulses

Abstract

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 $108 \mu \mathrm{m}$) 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.

© 2001 Optical Society of America

Propagation of ultrawideband short pulses of terahertz radiation through submillimeter-diameter circular waveguides

R. W. McGowan, G. Gallot, and D. Grischkowsky
Opt. Lett. 24(20) 1431-1433 (1999)

Whispering-gallery mode terahertz pulses

Jiangquan Zhang and D. Grischkowsky
Opt. Lett. 27(8) 661-662 (2002)

An investigation of the lowest-order transverse-electric (TE₁) mode of the parallel-plate waveguide for THz pulse propagation

Rajind Mendis and Daniel M. Mittleman
J. Opt. Soc. Am. B 26(9) A6-A13 (2009)

Guided propagation of terahertz pulses on metal wires

Kanglin Wang and Daniel M. Mittleman
J. Opt. Soc. Am. B 22(9) 2001-2008 (2005)

Terahertz waveguides

G. Gallot, S. P. Jamison, R. W. McGowan, and D. Grischkowsky
J. Opt. Soc. Am. B 17(5) 851-863 (2000)