Frozen and broadband slow light in coupled periodic nanowire waveguides | Zendy

Nadav Gutman | Zendy; W. Hugo Dupree | Zendy; Yue Sun | Zendy; Andrey A. Sukhorukov | Zendy; C. Martijn de Sterke | Zendy

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Frozen and broadband slow light in coupled periodic nanowire waveguides

Author(s) -

Nadav Gutman,

W. Hugo Dupree,

Yue Sun,

Andrey A. Sukhorukov,

C. Martijn de Sterke

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.20.003519

Subject(s) - slow light , optics , nanowire , broadband , coupled mode theory , inflection point , coupling (piping) , group velocity , waveguide , bandwidth (computing) , dispersion (optics) , mode coupling , optoelectronics , physics , materials science , photonic crystal , refractive index , telecommunications , geometry , mathematics , computer science , metallurgy

We develop novel designs enabling slow-light propagation with vanishing group-velocity dispersion ("frozen light") and slow-light with large delay-bandwidth product, in periodic nanowires. Our design is based on symmetry-breaking of periodic nanowire waveguides and we demonstrate its vailidy through two- and three-dimensional simulations. The slow-light is associated with a stationary inflection point which appears through coupling between forward and backward waveguide modes. The mode coupling also leads to evanescent modes, which enable efficient light coupling to the slow mode.

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