META Conference, META'10

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Subwavelength confinement of Sommerfeld waves on tapered wire waveguides
Daniel Mittleman

Last modified: 2009-11-07


The idea of using tapered wire waveguides to confine terahertz surface plasmons to subwavelength dimensions has attracted a great deal of attention recently.  We present experimental studies of the field confinement at the end of a tapered wire.  We observe tip-size-limited field distributions, with dimensions on the order of lambda/100.