META Conference, META'12

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Confinement of THz surface plasmon on planar Goubau lines
Djamal GACEMI, Juliette Mangeney, karine blary, Jean-Francois lampin, thibault laurent, tahsin akalin, paul crozat, fanqi meng

Last modified: 2012-06-24


We investigate surface plasmon waves propagating on planar Goubau lines, so-called Goubau mode, using a guided-wave terahertz spectroscopy system based on a freely positionable electro-optic probe. We show the radial nature of the Goubau mode and its confinement around the Goubau line over few tenths of microns (lamda/10).


goubau; terahertz; plasmon; SPP; TSP