Low-loss light transmission in a rectangular-shaped hybrid metal trench at 1550 nm

Research output: Contribution to journalArticle


A hybrid plasmonic waveguide consisting of a high-index dielectric core embedded inside a rectangular-shaped metallic trench is proposed and its guiding properties are investigated at the wavelength of 1550 nm. Numerical simulations based on the finite element method have demonstrated that the introduced dielectric core could greatly reduce the modal loss of the metal trench while maintaining strong confinement of light. The effects of dielectric core size, material of the cladding and the dielectric core on the modal properties have been systematically investigated. The proposed hybrid plasmonic structure can be realized employing fabrication techniques of the traditional metal trench waveguides and could be leveraged as important elements for highly-integrated photonic circuits. (C) 2013 Optical Society of America


  • Pengfei Yang
  • Zhigang Di
  • Hongxing Xu
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)17053-17059
JournalOptics Express
Issue number14
Publication statusPublished - 2013
Publication categoryResearch