Broadband generation of terahertz radiation in a waveguide.
We report a novel geometry that allows for the phase-matched generation of broadband terahertz radiation in a polymer-based parallel-plate metal waveguide by means of optical rectification. Both the optical pump beam and the generated terahertz radiation propagate in the fundamental mode of the waveguide. This allows for noncritical phase matching over a broad range of terahertz frequencies. We demonstrate guided-wave interaction lengths of up to 3 mm.
Cao
Hua
H
Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, Utah 84112, USA.
Linke
Richard A
RA
Nahata
Ajay
A