Hybrid wedge plasmon polariton waveguide with good fabrication-error- tolerance for ultra-deep-subwavelength mode confinement

Yusheng Bian, Zheng Zheng, Ya Liu, Jiansheng Liu, Jinsong Zhu, Tao Zhou

Research output: Contribution to journalArticlepeer-review

102 Scopus citations

Abstract

A novel hybrid plasmonic waveguide consisting of a high-index dielectric nanowire placed above a triangular metal wedge substrate is proposed and analyzed theoretically. The strong coupling between the wedge plasmon polariton and the dielectric nanowire mode results in both the ultra-tight confinement and low propagation loss. Compared to the previous studied hybrid surface plasmon polariton structures without the metal wedge substrate, stronger field enhancement in the low-index gap region as well as improved figure of merit (FOM) could be realized simultaneously. Results of the modal properties considering certain fabrication imperfections show that the proposed structure is also quite tolerant to these errors.

Original languageEnglish (US)
Pages (from-to)22417-22422
Number of pages6
JournalOptics Express
Volume19
Issue number23
DOIs
StatePublished - Nov 7 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Fingerprint

Dive into the research topics of 'Hybrid wedge plasmon polariton waveguide with good fabrication-error- tolerance for ultra-deep-subwavelength mode confinement'. Together they form a unique fingerprint.

Cite this