Direct generation of terahertz surface plasmon polaritons on a wire using electron bunches

P.W. Smorenburg, W.P.E.M. Root, op 't, O.J. Luiten

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

10 Citaten (Scopus)
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Samenvatting

We propose to generate terahertz surface plasmon polaritons (SPPs) on a metal wire by launching electron bunches onto a tapered end of the wire. To show the potential of this method, we solve Maxwell's equations for the appropriate boundary conditions. The metal wire tip is modeled by a perfectly conducting semi-infinite cone. It is shown that the SPPs can be recovered from the idealized fields by well-known perturbation techniques. The emitted radiation is strongly concentrated into a narrow solid angle near the cone boundary for cones with a small opening angle. We calculate that, using currently available technology, subpicosecond SPPs with peak electric fields of the order of MV/cm on a 1 mm diameter wire can be obtained.
Originele taal-2Engels
Artikelnummer115415
Pagina's (van-tot)115415-1/17
Aantal pagina's17
TijdschriftPhysical Review B
Volume78
Nummer van het tijdschrift11
DOI's
StatusGepubliceerd - 2008

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