Compact gradual bends for channel plasmon polaritons

Valentyn Volkov, Sergey Bozhevolnyi, E. Devaux, T.W. Ebbesen

Research output: Contribution to journalJournal articleResearchpeer-review


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-µm-offset grooves over a distance of 5 µm. 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.
Original languageEnglish
JournalOptics Express
Issue number10
Pages (from-to)4494-4503
Publication statusPublished - 15. May 2006
Externally publishedYes


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