Share Email Print
cover

Proceedings Paper

Plasmonic logic gates and devices in silver nanowire networks
Author(s): Hong Wei; Hongxing Xu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The local electric field distribution of propagating surface plasmons along Ag nanowires can be imaged by coating the nanowires with a layer of quantum dots, which provide a useful tool to study the plasmon propagation. In simple photonic networks composed of Ag nanowires, plasmons can be controllably routed to a specific nanowire output. The underlying physical mechanism is that the plasmon interferences modulate the near field distribution and thus control the output intensity. The plasmon interference can result in combinations of optical signals that execute specific interferometric Boolean logic operations. And a complete family of Boolean logic gates is realized in the simple nanowire networks. The primary nanowire in the network can be viewed as the plasmonic equivalent of a bus in a central processing unit. Furthermore, a plasmonic NOR gate is demonstrated by cascading OR gate and NOT gate. To realize the cascaded NOR gate, the plasmon wave packet should overlap with the junction between the main wire and the branch wire for the control signal.

Paper Details

Date Published: 21 September 2011
PDF: 11 pages
Proc. SPIE 8096, Plasmonics: Metallic Nanostructures and Their Optical Properties IX, 80961W (21 September 2011); doi: 10.1117/12.894127
Show Author Affiliations
Hong Wei, Beijing National Lab. for Condensed Matter Physics and Institute of Physics (China)
Hongxing Xu, Beijing National Lab. for Condensed Matter Physics and Institute of Physics (China)


Published in SPIE Proceedings Vol. 8096:
Plasmonics: Metallic Nanostructures and Their Optical Properties IX
Mark I. Stockman, Editor(s)

© SPIE. Terms of Use
Back to Top