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Opt Lett. 2005 Sep 15;30(18):2357-9.

All-optical switching of the transmission of electromagnetic radiation through subwavelength apertures.

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1
Institut für Halbleitertechnik, RWTH Aachen University, D-52056 Aachen, Germany.

Abstract

Unprecedented optical control of the surface plasmon polariton assisted transmission of terahertz radiation through subwavelength apertures is rendered possible by carrier-induced changes to the dielectric properties of a semiconductor grating. Although the study presented is static, the extension of our approach to dynamic switching and tuning is deemed straightforward, opening the way for the realization of ultrafast surface plasmon based devices.

PMID:
16196318
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