Compact gradual bends for channel plasmon polaritons | Zendy

Valentyn S. Volkov | Zendy; Sergey I. Bozhevolnyi | Zendy; Éloïse Devaux | Zendy; Thomas W. Ebbesen | Zendy

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Compact gradual bends for channel plasmon polaritons

Author(s) -

Valentyn S. Volkov,

Sergey I. Bozhevolnyi,

Éloïse Devaux,

Thomas W. Ebbesen

Publication year - 2006

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.14.004494

Subject(s) - optics , surface plasmon polariton , wavelength , materials science , bent molecular geometry , groove (engineering) , plasmon , polariton , channel spacing , surface plasmon , optoelectronics , wavelength division multiplexing , physics , metallurgy , composite material

We report the design, fabrication and characterization of compact gradual bends for channel plasmon polaritons (CPPs) being excited at telecom wavelengths. We obtain high-quality near-field optical images of CPP modes propagating along a bent V-groove in gold, which indicate good CPP mode confinement in the groove and efficient guiding around the compact S-bend connecting two 5-mum-offset grooves over a distance of 5 mum. Using averaged cross sections of the CPP intensity distributions before and after the S-bend, the total bend loss is evaluated and found to be close to 2.3 dB for the wavelengths in the range of 1430-1640 nm.

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