Electrical detection of surface plasmon polaritons by 1G0 gold quantum point contacts.

Ittah, Naomi; Selzer, Yoram · Nano Lett · 2011

basic_science · Level V

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Abstract

Electrical detection of surface plasmons polaritons (SPPs) is essential for realization of integrated fast nanoscale plasmonic circuits. We demonstrate electrical detection of SPPs by measuring their remote gating effect on 1G(0) metal quantum point contacts (MQPC) made of gold. Gating is argued to take place by a photoassisted transport mechanism with nonmonotonic behavior of its magnitude as a function of distance between the MQPCs and the position of SPPs creation.

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