One way optical waveguides for matched non-reciprocal nanoantennas with dynamic beam scanning functionality

Research output: Contribution to journalArticlepeer-review

Abstract

Matching circuits for waveguide-nanoantenna connections are difficult to implement. However, if the waveguide permits only one-way propagation, the matching issue disappears since back-reflections cannot take place; the feed signal is converted to radiation at high efficiency. Hence, a terminated one-way waveguide may serve as an assembly consisting of a waveguide, a matching mechanism, and an antenna. Since one-way structures are inherently non-reciprocal, this antenna possesses different transmit and receive patterns. We test and demonstrate this concept on a recently suggested new class of one-way plasmonic waveguides and present an additional significant dynamic beam scanning functionality.

Original languageEnglish
Pages (from-to)A77-A83
JournalOptics Express
Volume21
Issue number101
DOIs
StatePublished - 14 Jan 2013

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