The Excitation and Emission of Terahertz Surface Plasmon Polaritons on Metal Wire Waveguides
Document Type
Article
Publication Date
3-2008
Abstract
The development of effective techniques for guiding pulsed terahertz radiation is essential for the continued development of terahertz spectroscopy and imaging applications based on the technique of time-domain spectroscopy. Terahertz surface plasmon polaritons (SPPs) can be excited and guided on cylindrical metal wires with low loss and dispersion. This propagating surface wave, known as a Sommerfeld wave, possesses radial polarization, which is not well matched with conventional sources of pulsed terahertz radiation. A photoconductive terahertz antenna with radial symmetry produces radiation that more efficiently couples to the wire waveguide. At the end of the wire, terahertz SPPs emit radiation into free-space that exhibits frequency-dependent diffraction.
Repository Citation
Deibel, J. A.,
Wang, K.,
Escarra, M.,
Berndsen, N.,
& Mittleman, D. M.
(2008). The Excitation and Emission of Terahertz Surface Plasmon Polaritons on Metal Wire Waveguides. Comptes Rendus Physique, 9 (2), 215-231.
https://corescholar.libraries.wright.edu/physics/845
DOI
10.1016/j.crhy.2007.07.011
