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

Yakir Hadad | Zendy; Ben Z. Steinberg | Zendy

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

Author(s) -

Yakir Hadad,

Ben Z. Steinberg

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.000a77

Subject(s) - optics , waveguide , antenna (radio) , reciprocal , plasmon , computer science , matching (statistics) , electronic circuit , beam waveguide antenna , optoelectronics , radiation pattern , physics , telecommunications , antenna efficiency , linguistics , philosophy , statistics , mathematics , quantum mechanics

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.

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