Rennings, Andreas; Mosig, J.; Gupta, S.; Caloz, Christophe; Kashyap, R.; Erni, Daniel; Waldow, Peter:

Ultra-Compact power splitter based on surface plasmons

In: International Symposium on Signals, Systems, and Electronics, 2007 : ISSSE '07 ; Montreal, Canada, July 30, 2007 - Aug. 2, 2007
Piscataway, NJ: IEEE Service Center (2007), S. 471-474
ISBN: 1-4244-1449-0, 1-4244-1448-2
Buchaufsatz / Kapitel / Fach: Elektrotechnik
Abstract:
A novel power splitter based on coupled surface plasmons (SPs) is proposed for optical frequency applications. This power divider is an ultra-compact forward or co-directional coupling device. A specific SiO2-Ag-SiO2 685-THz design is demonstrated by full-wave analysis, where a coupling length of only 36 nm and an overall dimension of around 500 nm is achieved. The underlying principle of coupled SPs may lead to various novel nanoscale optical devices.